2143960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1$

素因数の和:81

約数の個数: 128

約数和(自身を含む): 6451200

約数和(自身を除く): 4307240

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 19, 20, 26, 28, 31, 35, 38, 40, 52, 56, 62, 65, 70, 76, 91, 95, 104, 124, 130, 133, 140, 152, 155, 182, 190, 217, 247, 248, 260, 266, 280, 310, 364, 380, 403, 434, 455, 494, 520, 532, 589, 620, 665, 728, 760, 806, 868, 910, 988, 1064, 1085, 1178, 1235, 1240, 1330, 1612, 1729, 1736, 1820, 1976, 2015, 2170, 2356, 2470, 2660, 2821, 2945, 3224, 3458, 3640, 4030, 4123, 4340, 4712, 4940, 5320, 5642, 5890, 6916, 7657, 8060, 8246, 8645, 8680, 9880, 11284, 11780, 13832, 14105, 15314, 16120, 16492, 17290, 20615, 22568, 23560, 28210, 30628, 32984, 34580, 38285, 41230, 53599, 56420, 61256, 69160, 76570, 82460, 107198, 112840, 153140, 164920, 214396, 267995, 306280, 428792, 535990, 1071980, 2143960]

約数ペア:

[(1, 2143960), (2, 1071980), (4, 535990), (5, 428792), (7, 306280), (8, 267995), (10, 214396), (13, 164920), (14, 153140), (19, 112840), (20, 107198), (26, 82460), (28, 76570), (31, 69160), (35, 61256), (38, 56420), (40, 53599), (52, 41230), (56, 38285), (62, 34580), (65, 32984), (70, 30628), (76, 28210), (91, 23560), (95, 22568), (104, 20615), (124, 17290), (130, 16492), (133, 16120), (140, 15314), (152, 14105), (155, 13832), (182, 11780), (190, 11284), (217, 9880), (247, 8680), (248, 8645), (260, 8246), (266, 8060), (280, 7657), (310, 6916), (364, 5890), (380, 5642), (403, 5320), (434, 4940), (455, 4712), (494, 4340), (520, 4123), (532, 4030), (589, 3640), (620, 3458), (665, 3224), (728, 2945), (760, 2821), (806, 2660), (868, 2470), (910, 2356), (988, 2170), (1064, 2015), (1085, 1976), (1178, 1820), (1235, 1736), (1240, 1729), (1330, 1612)]