78438880

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{877}}^1$

素因数の和:948

約数の個数: 96

約数和(自身を含む): 204440544

約数和(自身を除く): 126001664

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 43, 52, 65, 80, 86, 104, 130, 160, 172, 208, 215, 260, 344, 416, 430, 520, 559, 688, 860, 877, 1040, 1118, 1376, 1720, 1754, 2080, 2236, 2795, 3440, 3508, 4385, 4472, 5590, 6880, 7016, 8770, 8944, 11180, 11401, 14032, 17540, 17888, 22360, 22802, 28064, 35080, 37711, 44720, 45604, 57005, 70160, 75422, 89440, 91208, 114010, 140320, 150844, 182416, 188555, 228020, 301688, 364832, 377110, 456040, 490243, 603376, 754220, 912080, 980486, 1206752, 1508440, 1824160, 1960972, 2451215, 3016880, 3921944, 4902430, 6033760, 7843888, 9804860, 15687776, 19609720, 39219440, 78438880]

約数ペア:

[(1, 78438880), (2, 39219440), (4, 19609720), (5, 15687776), (8, 9804860), (10, 7843888), (13, 6033760), (16, 4902430), (20, 3921944), (26, 3016880), (32, 2451215), (40, 1960972), (43, 1824160), (52, 1508440), (65, 1206752), (80, 980486), (86, 912080), (104, 754220), (130, 603376), (160, 490243), (172, 456040), (208, 377110), (215, 364832), (260, 301688), (344, 228020), (416, 188555), (430, 182416), (520, 150844), (559, 140320), (688, 114010), (860, 91208), (877, 89440), (1040, 75422), (1118, 70160), (1376, 57005), (1720, 45604), (1754, 44720), (2080, 37711), (2236, 35080), (2795, 28064), (3440, 22802), (3508, 22360), (4385, 17888), (4472, 17540), (5590, 14032), (6880, 11401), (7016, 11180), (8770, 8944)]