8991495440

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{3625603}}^1$

素因数の和:3625647

約数の個数: 40

約数和(自身を含む): 21579595008

約数和(自身を除く): 12588099568

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 3625603, 7251206, 14502412, 18128015, 29004824, 36256030, 58009648, 72512060, 112393693, 145024120, 224787386, 290048240, 449574772, 561968465, 899149544, 1123936930, 1798299088, 2247873860, 4495747720, 8991495440]

約数ペア:

[(1, 8991495440), (2, 4495747720), (4, 2247873860), (5, 1798299088), (8, 1123936930), (10, 899149544), (16, 561968465), (20, 449574772), (31, 290048240), (40, 224787386), (62, 145024120), (80, 112393693), (124, 72512060), (155, 58009648), (248, 36256030), (310, 29004824), (496, 18128015), (620, 14502412), (1240, 7251206), (2480, 3625603)]