18278520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{11717}}^1$

素因数の和:11744

約数の個数: 64

約数和(自身を含む): 59058720

約数和(自身を除く): 40780200

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, 11717, 23434, 35151, 46868, 58585, 70302, 93736, 117170, 140604, 152321, 175755, 234340, 281208, 304642, 351510, 456963, 468680, 609284, 703020, 761605, 913926, 1218568, 1406040, 1523210, 1827852, 2284815, 3046420, 3655704, 4569630, 6092840, 9139260, 18278520]

約数ペア:

[(1, 18278520), (2, 9139260), (3, 6092840), (4, 4569630), (5, 3655704), (6, 3046420), (8, 2284815), (10, 1827852), (12, 1523210), (13, 1406040), (15, 1218568), (20, 913926), (24, 761605), (26, 703020), (30, 609284), (39, 468680), (40, 456963), (52, 351510), (60, 304642), (65, 281208), (78, 234340), (104, 175755), (120, 152321), (130, 140604), (156, 117170), (195, 93736), (260, 70302), (312, 58585), (390, 46868), (520, 35151), (780, 23434), (1560, 11717)]