30951960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19841}}^1$

素因数の和:19868

約数の個数: 64

約数和(自身を含む): 100003680

約数和(自身を除く): 69051720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 19841, 39682, 59523, 79364, 99205, 119046, 158728, 198410, 238092, 257933, 297615, 396820, 476184, 515866, 595230, 773799, 793640, 1031732, 1190460, 1289665, 1547598, 2063464, 2380920, 2579330, 3095196, 3868995, 5158660, 6190392, 7737990, 10317320, 15475980, 30951960]

約数ペア:

[(1, 30951960), (2, 15475980), (3, 10317320), (4, 7737990), (5, 6190392), (6, 5158660), (8, 3868995), (10, 3095196), (12, 2579330), (13, 2380920), (15, 2063464), (20, 1547598), (24, 1289665), (26, 1190460), (30, 1031732), (39, 793640), (40, 773799), (52, 595230), (60, 515866), (65, 476184), (78, 396820), (104, 297615), (120, 257933), (130, 238092), (156, 198410), (195, 158728), (260, 119046), (312, 99205), (390, 79364), (520, 59523), (780, 39682), (1560, 19841)]