8919520

素因数分解:

$2^5\times 5^1\times {\mathrm{107}}^1\times {\mathrm{521}}^1$

素因数の和:643

約数の個数: 48

約数和(自身を含む): 21310128

約数和(自身を除く): 12390608

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 107, 160, 214, 428, 521, 535, 856, 1042, 1070, 1712, 2084, 2140, 2605, 3424, 4168, 4280, 5210, 8336, 8560, 10420, 16672, 17120, 20840, 41680, 55747, 83360, 111494, 222988, 278735, 445976, 557470, 891952, 1114940, 1783904, 2229880, 4459760, 8919520]

約数ペア:

[(1, 8919520), (2, 4459760), (4, 2229880), (5, 1783904), (8, 1114940), (10, 891952), (16, 557470), (20, 445976), (32, 278735), (40, 222988), (80, 111494), (107, 83360), (160, 55747), (214, 41680), (428, 20840), (521, 17120), (535, 16672), (856, 10420), (1042, 8560), (1070, 8336), (1712, 5210), (2084, 4280), (2140, 4168), (2605, 3424)]