209391840

素因数分解:

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

素因数の和:20801

約数の個数: 144

約数和(自身を含む): 816667488

約数和(自身を除く): 607275648

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 140, 144, 160, 168, 180, 210, 224, 240, 252, 280, 288, 315, 336, 360, 420, 480, 504, 560, 630, 672, 720, 840, 1008, 1120, 1260, 1440, 1680, 2016, 2520, 3360, 5040, 10080, 20773, 41546, 62319, 83092, 103865, 124638, 145411, 166184, 186957, 207730, 249276, 290822, 311595, 332368, 373914, 415460, 436233, 498552, 581644, 623190, 664736, 727055, 747828, 830920, 872466, 934785, 997104, 1163288, 1246380, 1308699, 1454110, 1495656, 1661840, 1744932, 1869570, 1994208, 2181165, 2326576, 2492760, 2617398, 2908220, 2991312, 3323680, 3489864, 3739140, 4362330, 4653152, 4985520, 5234796, 5816440, 5982624, 6543495, 6979728, 7478280, 8724660, 9971040, 10469592, 11632880, 13086990, 13959456, 14956560, 17449320, 20939184, 23265760, 26173980, 29913120, 34898640, 41878368, 52347960, 69797280, 104695920, 209391840]

約数ペア:

[(1, 209391840), (2, 104695920), (3, 69797280), (4, 52347960), (5, 41878368), (6, 34898640), (7, 29913120), (8, 26173980), (9, 23265760), (10, 20939184), (12, 17449320), (14, 14956560), (15, 13959456), (16, 13086990), (18, 11632880), (20, 10469592), (21, 9971040), (24, 8724660), (28, 7478280), (30, 6979728), (32, 6543495), (35, 5982624), (36, 5816440), (40, 5234796), (42, 4985520), (45, 4653152), (48, 4362330), (56, 3739140), (60, 3489864), (63, 3323680), (70, 2991312), (72, 2908220), (80, 2617398), (84, 2492760), (90, 2326576), (96, 2181165), (105, 1994208), (112, 1869570), (120, 1744932), (126, 1661840), (140, 1495656), (144, 1454110), (160, 1308699), (168, 1246380), (180, 1163288), (210, 997104), (224, 934785), (240, 872466), (252, 830920), (280, 747828), (288, 727055), (315, 664736), (336, 623190), (360, 581644), (420, 498552), (480, 436233), (504, 415460), (560, 373914), (630, 332368), (672, 311595), (720, 290822), (840, 249276), (1008, 207730), (1120, 186957), (1260, 166184), (1440, 145411), (1680, 124638), (2016, 103865), (2520, 83092), (3360, 62319), (5040, 41546), (10080, 20773)]