126157640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{450563}}^1$

素因数の和:450581

約数の個数: 32

約数和(自身を含む): 324406080

約数和(自身を除く): 198248440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 450563, 901126, 1802252, 2252815, 3153941, 3604504, 4505630, 6307882, 9011260, 12615764, 15769705, 18022520, 25231528, 31539410, 63078820, 126157640]

約数ペア:

[(1, 126157640), (2, 63078820), (4, 31539410), (5, 25231528), (7, 18022520), (8, 15769705), (10, 12615764), (14, 9011260), (20, 6307882), (28, 4505630), (35, 3604504), (40, 3153941), (56, 2252815), (70, 1802252), (140, 901126), (280, 450563)]