861840

素因数分解:

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

素因数の和:51

約数の個数: 200

約数和(自身を含む): 3600960

約数和(自身を除く): 2739120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 19, 20, 21, 24, 27, 28, 30, 35, 36, 38, 40, 42, 45, 48, 54, 56, 57, 60, 63, 70, 72, 76, 80, 81, 84, 90, 95, 105, 108, 112, 114, 120, 126, 133, 135, 140, 144, 152, 162, 168, 171, 180, 189, 190, 210, 216, 228, 240, 252, 266, 270, 280, 285, 304, 315, 324, 336, 342, 360, 378, 380, 399, 405, 420, 432, 456, 504, 513, 532, 540, 560, 567, 570, 630, 648, 665, 684, 720, 756, 760, 798, 810, 840, 855, 912, 945, 1008, 1026, 1064, 1080, 1134, 1140, 1197, 1260, 1296, 1330, 1368, 1512, 1520, 1539, 1596, 1620, 1680, 1710, 1890, 1995, 2052, 2128, 2160, 2268, 2280, 2394, 2520, 2565, 2660, 2736, 2835, 3024, 3078, 3192, 3240, 3420, 3591, 3780, 3990, 4104, 4536, 4560, 4788, 5040, 5130, 5320, 5670, 5985, 6156, 6384, 6480, 6840, 7182, 7560, 7695, 7980, 8208, 9072, 9576, 10260, 10640, 10773, 11340, 11970, 12312, 13680, 14364, 15120, 15390, 15960, 17955, 19152, 20520, 21546, 22680, 23940, 24624, 28728, 30780, 31920, 35910, 41040, 43092, 45360, 47880, 53865, 57456, 61560, 71820, 86184, 95760, 107730, 123120, 143640, 172368, 215460, 287280, 430920, 861840]

約数ペア:

[(1, 861840), (2, 430920), (3, 287280), (4, 215460), (5, 172368), (6, 143640), (7, 123120), (8, 107730), (9, 95760), (10, 86184), (12, 71820), (14, 61560), (15, 57456), (16, 53865), (18, 47880), (19, 45360), (20, 43092), (21, 41040), (24, 35910), (27, 31920), (28, 30780), (30, 28728), (35, 24624), (36, 23940), (38, 22680), (40, 21546), (42, 20520), (45, 19152), (48, 17955), (54, 15960), (56, 15390), (57, 15120), (60, 14364), (63, 13680), (70, 12312), (72, 11970), (76, 11340), (80, 10773), (81, 10640), (84, 10260), (90, 9576), (95, 9072), (105, 8208), (108, 7980), (112, 7695), (114, 7560), (120, 7182), (126, 6840), (133, 6480), (135, 6384), (140, 6156), (144, 5985), (152, 5670), (162, 5320), (168, 5130), (171, 5040), (180, 4788), (189, 4560), (190, 4536), (210, 4104), (216, 3990), (228, 3780), (240, 3591), (252, 3420), (266, 3240), (270, 3192), (280, 3078), (285, 3024), (304, 2835), (315, 2736), (324, 2660), (336, 2565), (342, 2520), (360, 2394), (378, 2280), (380, 2268), (399, 2160), (405, 2128), (420, 2052), (432, 1995), (456, 1890), (504, 1710), (513, 1680), (532, 1620), (540, 1596), (560, 1539), (567, 1520), (570, 1512), (630, 1368), (648, 1330), (665, 1296), (684, 1260), (720, 1197), (756, 1140), (760, 1134), (798, 1080), (810, 1064), (840, 1026), (855, 1008), (912, 945)]