30811560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19751}}^1$

素因数の和:19778

約数の個数: 64

約数和(自身を含む): 99550080

約数和(自身を除く): 68738520

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, 19751, 39502, 59253, 79004, 98755, 118506, 158008, 197510, 237012, 256763, 296265, 395020, 474024, 513526, 592530, 770289, 790040, 1027052, 1185060, 1283815, 1540578, 2054104, 2370120, 2567630, 3081156, 3851445, 5135260, 6162312, 7702890, 10270520, 15405780, 30811560]

約数ペア:

[(1, 30811560), (2, 15405780), (3, 10270520), (4, 7702890), (5, 6162312), (6, 5135260), (8, 3851445), (10, 3081156), (12, 2567630), (13, 2370120), (15, 2054104), (20, 1540578), (24, 1283815), (26, 1185060), (30, 1027052), (39, 790040), (40, 770289), (52, 592530), (60, 513526), (65, 474024), (78, 395020), (104, 296265), (120, 256763), (130, 237012), (156, 197510), (195, 158008), (260, 118506), (312, 98755), (390, 79004), (520, 59253), (780, 39502), (1560, 19751)]