89991760

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{277}}^1$

素因数の和:452

約数の個数: 80

約数和(自身を含む): 218414592

約数和(自身を除く): 128422832

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 131, 155, 248, 262, 277, 310, 496, 524, 554, 620, 655, 1048, 1108, 1240, 1310, 1385, 2096, 2216, 2480, 2620, 2770, 4061, 4432, 5240, 5540, 8122, 8587, 10480, 11080, 16244, 17174, 20305, 22160, 32488, 34348, 36287, 40610, 42935, 64976, 68696, 72574, 81220, 85870, 137392, 145148, 162440, 171740, 181435, 290296, 324880, 343480, 362870, 580592, 686960, 725740, 1124897, 1451480, 2249794, 2902960, 4499588, 5624485, 8999176, 11248970, 17998352, 22497940, 44995880, 89991760]

約数ペア:

[(1, 89991760), (2, 44995880), (4, 22497940), (5, 17998352), (8, 11248970), (10, 8999176), (16, 5624485), (20, 4499588), (31, 2902960), (40, 2249794), (62, 1451480), (80, 1124897), (124, 725740), (131, 686960), (155, 580592), (248, 362870), (262, 343480), (277, 324880), (310, 290296), (496, 181435), (524, 171740), (554, 162440), (620, 145148), (655, 137392), (1048, 85870), (1108, 81220), (1240, 72574), (1310, 68696), (1385, 64976), (2096, 42935), (2216, 40610), (2480, 36287), (2620, 34348), (2770, 32488), (4061, 22160), (4432, 20305), (5240, 17174), (5540, 16244), (8122, 11080), (8587, 10480)]