1989222480

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{20773}}^1$

素因数の和:20818

約数の個数: 240

約数和(自身を含む): 8037045120

約数和(自身を除く): 6047822640

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 19, 20, 21, 24, 28, 30, 35, 36, 38, 40, 42, 45, 48, 56, 57, 60, 63, 70, 72, 76, 80, 84, 90, 95, 105, 112, 114, 120, 126, 133, 140, 144, 152, 168, 171, 180, 190, 210, 228, 240, 252, 266, 280, 285, 304, 315, 336, 342, 360, 380, 399, 420, 456, 504, 532, 560, 570, 630, 665, 684, 720, 760, 798, 840, 855, 912, 1008, 1064, 1140, 1197, 1260, 1330, 1368, 1520, 1596, 1680, 1710, 1995, 2128, 2280, 2394, 2520, 2660, 2736, 3192, 3420, 3990, 4560, 4788, 5040, 5320, 5985, 6384, 6840, 7980, 9576, 10640, 11970, 13680, 15960, 19152, 20773, 23940, 31920, 41546, 47880, 62319, 83092, 95760, 103865, 124638, 145411, 166184, 186957, 207730, 249276, 290822, 311595, 332368, 373914, 394687, 415460, 436233, 498552, 581644, 623190, 727055, 747828, 789374, 830920, 872466, 934785, 997104, 1163288, 1184061, 1246380, 1308699, 1454110, 1495656, 1578748, 1661840, 1744932, 1869570, 1973435, 2181165, 2326576, 2368122, 2492760, 2617398, 2762809, 2908220, 2991312, 3157496, 3489864, 3552183, 3739140, 3946870, 4362330, 4736244, 4985520, 5234796, 5525618, 5816440, 5920305, 6314992, 6543495, 6979728, 7104366, 7478280, 7893740, 8288427, 8724660, 9472488, 10469592, 11051236, 11632880, 11840610, 13086990, 13814045, 14208732, 14956560, 15787480, 16576854, 17449320, 17760915, 18944976, 20939184, 22102472, 23681220, 24865281, 26173980, 27628090, 28417464, 31574960, 33153708, 34898640, 35521830, 41442135, 44204944, 47362440, 49730562, 52347960, 55256180, 56834928, 66307416, 71043660, 82884270, 94724880, 99461124, 104695920, 110512360, 124326405, 132614832, 142087320, 165768540, 198922248, 221024720, 248652810, 284174640, 331537080, 397844496, 497305620, 663074160, 994611240, 1989222480]

約数ペア:

[(1, 1989222480), (2, 994611240), (3, 663074160), (4, 497305620), (5, 397844496), (6, 331537080), (7, 284174640), (8, 248652810), (9, 221024720), (10, 198922248), (12, 165768540), (14, 142087320), (15, 132614832), (16, 124326405), (18, 110512360), (19, 104695920), (20, 99461124), (21, 94724880), (24, 82884270), (28, 71043660), (30, 66307416), (35, 56834928), (36, 55256180), (38, 52347960), (40, 49730562), (42, 47362440), (45, 44204944), (48, 41442135), (56, 35521830), (57, 34898640), (60, 33153708), (63, 31574960), (70, 28417464), (72, 27628090), (76, 26173980), (80, 24865281), (84, 23681220), (90, 22102472), (95, 20939184), (105, 18944976), (112, 17760915), (114, 17449320), (120, 16576854), (126, 15787480), (133, 14956560), (140, 14208732), (144, 13814045), (152, 13086990), (168, 11840610), (171, 11632880), (180, 11051236), (190, 10469592), (210, 9472488), (228, 8724660), (240, 8288427), (252, 7893740), (266, 7478280), (280, 7104366), (285, 6979728), (304, 6543495), (315, 6314992), (336, 5920305), (342, 5816440), (360, 5525618), (380, 5234796), (399, 4985520), (420, 4736244), (456, 4362330), (504, 3946870), (532, 3739140), (560, 3552183), (570, 3489864), (630, 3157496), (665, 2991312), (684, 2908220), (720, 2762809), (760, 2617398), (798, 2492760), (840, 2368122), (855, 2326576), (912, 2181165), (1008, 1973435), (1064, 1869570), (1140, 1744932), (1197, 1661840), (1260, 1578748), (1330, 1495656), (1368, 1454110), (1520, 1308699), (1596, 1246380), (1680, 1184061), (1710, 1163288), (1995, 997104), (2128, 934785), (2280, 872466), (2394, 830920), (2520, 789374), (2660, 747828), (2736, 727055), (3192, 623190), (3420, 581644), (3990, 498552), (4560, 436233), (4788, 415460), (5040, 394687), (5320, 373914), (5985, 332368), (6384, 311595), (6840, 290822), (7980, 249276), (9576, 207730), (10640, 186957), (11970, 166184), (13680, 145411), (15960, 124638), (19152, 103865), (20773, 95760), (23940, 83092), (31920, 62319), (41546, 47880)]