256203220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{239}}^1$

素因数の和:318

約数の個数: 192

約数和(自身を含む): 722534400

約数和(自身を除く): 466331180

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 19, 20, 26, 28, 31, 35, 38, 52, 62, 65, 70, 76, 91, 95, 124, 130, 133, 140, 155, 182, 190, 217, 239, 247, 260, 266, 310, 364, 380, 403, 434, 455, 478, 494, 532, 589, 620, 665, 806, 868, 910, 956, 988, 1085, 1178, 1195, 1235, 1330, 1612, 1673, 1729, 1820, 2015, 2170, 2356, 2390, 2470, 2660, 2821, 2945, 3107, 3346, 3458, 4030, 4123, 4340, 4541, 4780, 4940, 5642, 5890, 6214, 6692, 6916, 7409, 7657, 8060, 8246, 8365, 8645, 9082, 11284, 11780, 12428, 14105, 14818, 15314, 15535, 16492, 16730, 17290, 18164, 20615, 21749, 22705, 28210, 29636, 30628, 31070, 31787, 33460, 34580, 37045, 38285, 41230, 43498, 45410, 51863, 53599, 56420, 59033, 62140, 63574, 74090, 76570, 82460, 86996, 90820, 96317, 103726, 107198, 108745, 118066, 127148, 140771, 148180, 153140, 158935, 192634, 207452, 214396, 217490, 236132, 259315, 267995, 281542, 295165, 317870, 385268, 413231, 434980, 481585, 518630, 535990, 563084, 590330, 635740, 674219, 703855, 826462, 963170, 985397, 1037260, 1071980, 1180660, 1348438, 1407710, 1652924, 1830023, 1926340, 1970794, 2066155, 2696876, 2815420, 3371095, 3660046, 3941588, 4132310, 4926985, 6742190, 7320092, 8264620, 9150115, 9853970, 12810161, 13484380, 18300230, 19707940, 25620322, 36600460, 51240644, 64050805, 128101610, 256203220]

約数ペア:

[(1, 256203220), (2, 128101610), (4, 64050805), (5, 51240644), (7, 36600460), (10, 25620322), (13, 19707940), (14, 18300230), (19, 13484380), (20, 12810161), (26, 9853970), (28, 9150115), (31, 8264620), (35, 7320092), (38, 6742190), (52, 4926985), (62, 4132310), (65, 3941588), (70, 3660046), (76, 3371095), (91, 2815420), (95, 2696876), (124, 2066155), (130, 1970794), (133, 1926340), (140, 1830023), (155, 1652924), (182, 1407710), (190, 1348438), (217, 1180660), (239, 1071980), (247, 1037260), (260, 985397), (266, 963170), (310, 826462), (364, 703855), (380, 674219), (403, 635740), (434, 590330), (455, 563084), (478, 535990), (494, 518630), (532, 481585), (589, 434980), (620, 413231), (665, 385268), (806, 317870), (868, 295165), (910, 281542), (956, 267995), (988, 259315), (1085, 236132), (1178, 217490), (1195, 214396), (1235, 207452), (1330, 192634), (1612, 158935), (1673, 153140), (1729, 148180), (1820, 140771), (2015, 127148), (2170, 118066), (2356, 108745), (2390, 107198), (2470, 103726), (2660, 96317), (2821, 90820), (2945, 86996), (3107, 82460), (3346, 76570), (3458, 74090), (4030, 63574), (4123, 62140), (4340, 59033), (4541, 56420), (4780, 53599), (4940, 51863), (5642, 45410), (5890, 43498), (6214, 41230), (6692, 38285), (6916, 37045), (7409, 34580), (7657, 33460), (8060, 31787), (8246, 31070), (8365, 30628), (8645, 29636), (9082, 28210), (11284, 22705), (11780, 21749), (12428, 20615), (14105, 18164), (14818, 17290), (15314, 16730), (15535, 16492)]