27787890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1657}}^1$

素因数の和:1723

約数の個数: 64

約数和(自身を含む): 73535616

約数和(自身を除く): 45747726

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 43, 65, 78, 86, 129, 130, 195, 215, 258, 390, 430, 559, 645, 1118, 1290, 1657, 1677, 2795, 3314, 3354, 4971, 5590, 8285, 8385, 9942, 16570, 16770, 21541, 24855, 43082, 49710, 64623, 71251, 107705, 129246, 142502, 213753, 215410, 323115, 356255, 427506, 646230, 712510, 926263, 1068765, 1852526, 2137530, 2778789, 4631315, 5557578, 9262630, 13893945, 27787890]

約数ペア:

[(1, 27787890), (2, 13893945), (3, 9262630), (5, 5557578), (6, 4631315), (10, 2778789), (13, 2137530), (15, 1852526), (26, 1068765), (30, 926263), (39, 712510), (43, 646230), (65, 427506), (78, 356255), (86, 323115), (129, 215410), (130, 213753), (195, 142502), (215, 129246), (258, 107705), (390, 71251), (430, 64623), (559, 49710), (645, 43082), (1118, 24855), (1290, 21541), (1657, 16770), (1677, 16570), (2795, 9942), (3314, 8385), (3354, 8285), (4971, 5590)]