65324440

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{379}}^1$

素因数の和:560

約数の個数: 64

約数和(自身を含む): 153216000

約数和(自身を除く): 87891560

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 139, 155, 248, 278, 310, 379, 556, 620, 695, 758, 1112, 1240, 1390, 1516, 1895, 2780, 3032, 3790, 4309, 5560, 7580, 8618, 11749, 15160, 17236, 21545, 23498, 34472, 43090, 46996, 52681, 58745, 86180, 93992, 105362, 117490, 172360, 210724, 234980, 263405, 421448, 469960, 526810, 1053620, 1633111, 2107240, 3266222, 6532444, 8165555, 13064888, 16331110, 32662220, 65324440]

約数ペア:

[(1, 65324440), (2, 32662220), (4, 16331110), (5, 13064888), (8, 8165555), (10, 6532444), (20, 3266222), (31, 2107240), (40, 1633111), (62, 1053620), (124, 526810), (139, 469960), (155, 421448), (248, 263405), (278, 234980), (310, 210724), (379, 172360), (556, 117490), (620, 105362), (695, 93992), (758, 86180), (1112, 58745), (1240, 52681), (1390, 46996), (1516, 43090), (1895, 34472), (2780, 23498), (3032, 21545), (3790, 17236), (4309, 15160), (5560, 11749), (7580, 8618)]