40901680

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{379}}^1$

素因数の和:482

約数の個数: 80

約数和(自身を含む): 101779200

約数和(自身を除く): 60877520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 71, 76, 80, 95, 142, 152, 190, 284, 304, 355, 379, 380, 568, 710, 758, 760, 1136, 1349, 1420, 1516, 1520, 1895, 2698, 2840, 3032, 3790, 5396, 5680, 6064, 6745, 7201, 7580, 10792, 13490, 14402, 15160, 21584, 26909, 26980, 28804, 30320, 36005, 53818, 53960, 57608, 72010, 107636, 107920, 115216, 134545, 144020, 215272, 269090, 288040, 430544, 511271, 538180, 576080, 1022542, 1076360, 2045084, 2152720, 2556355, 4090168, 5112710, 8180336, 10225420, 20450840, 40901680]

約数ペア:

[(1, 40901680), (2, 20450840), (4, 10225420), (5, 8180336), (8, 5112710), (10, 4090168), (16, 2556355), (19, 2152720), (20, 2045084), (38, 1076360), (40, 1022542), (71, 576080), (76, 538180), (80, 511271), (95, 430544), (142, 288040), (152, 269090), (190, 215272), (284, 144020), (304, 134545), (355, 115216), (379, 107920), (380, 107636), (568, 72010), (710, 57608), (758, 53960), (760, 53818), (1136, 36005), (1349, 30320), (1420, 28804), (1516, 26980), (1520, 26909), (1895, 21584), (2698, 15160), (2840, 14402), (3032, 13490), (3790, 10792), (5396, 7580), (5680, 7201), (6064, 6745)]