18170960

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{431}}^1$

素因数の和:492

約数の個数: 80

約数和(自身を含む): 46282752

約数和(自身を除く): 28111792

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 31, 34, 40, 62, 68, 80, 85, 124, 136, 155, 170, 248, 272, 310, 340, 431, 496, 527, 620, 680, 862, 1054, 1240, 1360, 1724, 2108, 2155, 2480, 2635, 3448, 4216, 4310, 5270, 6896, 7327, 8432, 8620, 10540, 13361, 14654, 17240, 21080, 26722, 29308, 34480, 36635, 42160, 53444, 58616, 66805, 73270, 106888, 117232, 133610, 146540, 213776, 227137, 267220, 293080, 454274, 534440, 586160, 908548, 1068880, 1135685, 1817096, 2271370, 3634192, 4542740, 9085480, 18170960]

約数ペア:

[(1, 18170960), (2, 9085480), (4, 4542740), (5, 3634192), (8, 2271370), (10, 1817096), (16, 1135685), (17, 1068880), (20, 908548), (31, 586160), (34, 534440), (40, 454274), (62, 293080), (68, 267220), (80, 227137), (85, 213776), (124, 146540), (136, 133610), (155, 117232), (170, 106888), (248, 73270), (272, 66805), (310, 58616), (340, 53444), (431, 42160), (496, 36635), (527, 34480), (620, 29308), (680, 26722), (862, 21080), (1054, 17240), (1240, 14654), (1360, 13361), (1724, 10540), (2108, 8620), (2155, 8432), (2480, 7327), (2635, 6896), (3448, 5270), (4216, 4310)]