18876780

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2689}}^1$

素因数の和:2720

約数の個数: 96

約数和(自身を含む): 63268800

約数和(自身を除く): 44392020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 27, 30, 36, 39, 45, 52, 54, 60, 65, 78, 90, 108, 117, 130, 135, 156, 180, 195, 234, 260, 270, 351, 390, 468, 540, 585, 702, 780, 1170, 1404, 1755, 2340, 2689, 3510, 5378, 7020, 8067, 10756, 13445, 16134, 24201, 26890, 32268, 34957, 40335, 48402, 53780, 69914, 72603, 80670, 96804, 104871, 121005, 139828, 145206, 161340, 174785, 209742, 242010, 290412, 314613, 349570, 363015, 419484, 484020, 524355, 629226, 699140, 726030, 943839, 1048710, 1258452, 1452060, 1573065, 1887678, 2097420, 3146130, 3775356, 4719195, 6292260, 9438390, 18876780]

約数ペア:

[(1, 18876780), (2, 9438390), (3, 6292260), (4, 4719195), (5, 3775356), (6, 3146130), (9, 2097420), (10, 1887678), (12, 1573065), (13, 1452060), (15, 1258452), (18, 1048710), (20, 943839), (26, 726030), (27, 699140), (30, 629226), (36, 524355), (39, 484020), (45, 419484), (52, 363015), (54, 349570), (60, 314613), (65, 290412), (78, 242010), (90, 209742), (108, 174785), (117, 161340), (130, 145206), (135, 139828), (156, 121005), (180, 104871), (195, 96804), (234, 80670), (260, 72603), (270, 69914), (351, 53780), (390, 48402), (468, 40335), (540, 34957), (585, 32268), (702, 26890), (780, 24201), (1170, 16134), (1404, 13445), (1755, 10756), (2340, 8067), (2689, 7020), (3510, 5378)]