18477420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23689}}^1$

素因数の和:23714

約数の個数: 48

約数和(自身を含む): 55718880

約数和(自身を除く): 37241460

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 23689, 47378, 71067, 94756, 118445, 142134, 236890, 284268, 307957, 355335, 473780, 615914, 710670, 923871, 1231828, 1421340, 1539785, 1847742, 3079570, 3695484, 4619355, 6159140, 9238710, 18477420]

約数ペア:

[(1, 18477420), (2, 9238710), (3, 6159140), (4, 4619355), (5, 3695484), (6, 3079570), (10, 1847742), (12, 1539785), (13, 1421340), (15, 1231828), (20, 923871), (26, 710670), (30, 615914), (39, 473780), (52, 355335), (60, 307957), (65, 284268), (78, 236890), (130, 142134), (156, 118445), (195, 94756), (260, 71067), (390, 47378), (780, 23689)]