15811640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{2339}}^1$

素因数の和:2376

約数の個数: 48

約数和(自身を含む): 38539800

約数和(自身を除く): 22728160

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 169, 260, 338, 520, 676, 845, 1352, 1690, 2339, 3380, 4678, 6760, 9356, 11695, 18712, 23390, 30407, 46780, 60814, 93560, 121628, 152035, 243256, 304070, 395291, 608140, 790582, 1216280, 1581164, 1976455, 3162328, 3952910, 7905820, 15811640]

約数ペア:

[(1, 15811640), (2, 7905820), (4, 3952910), (5, 3162328), (8, 1976455), (10, 1581164), (13, 1216280), (20, 790582), (26, 608140), (40, 395291), (52, 304070), (65, 243256), (104, 152035), (130, 121628), (169, 93560), (260, 60814), (338, 46780), (520, 30407), (676, 23390), (845, 18712), (1352, 11695), (1690, 9356), (2339, 6760), (3380, 4678)]