129308920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{1789}}^1$

素因数の和:1952

約数の個数: 64

約数和(自身を含む): 315756000

約数和(自身を除く): 186447080

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 139, 260, 278, 520, 556, 695, 1112, 1390, 1789, 1807, 2780, 3578, 3614, 5560, 7156, 7228, 8945, 9035, 14312, 14456, 17890, 18070, 23257, 35780, 36140, 46514, 71560, 72280, 93028, 116285, 186056, 232570, 248671, 465140, 497342, 930280, 994684, 1243355, 1989368, 2486710, 3232723, 4973420, 6465446, 9946840, 12930892, 16163615, 25861784, 32327230, 64654460, 129308920]

約数ペア:

[(1, 129308920), (2, 64654460), (4, 32327230), (5, 25861784), (8, 16163615), (10, 12930892), (13, 9946840), (20, 6465446), (26, 4973420), (40, 3232723), (52, 2486710), (65, 1989368), (104, 1243355), (130, 994684), (139, 930280), (260, 497342), (278, 465140), (520, 248671), (556, 232570), (695, 186056), (1112, 116285), (1390, 93028), (1789, 72280), (1807, 71560), (2780, 46514), (3578, 36140), (3614, 35780), (5560, 23257), (7156, 18070), (7228, 17890), (8945, 14456), (9035, 14312)]