4181840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{4021}}^1$

素因数の和:4047

約数の個数: 40

約数和(自身を含む): 10473288

約数和(自身を除く): 6291448

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 4021, 8042, 16084, 20105, 32168, 40210, 52273, 64336, 80420, 104546, 160840, 209092, 261365, 321680, 418184, 522730, 836368, 1045460, 2090920, 4181840]

約数ペア:

[(1, 4181840), (2, 2090920), (4, 1045460), (5, 836368), (8, 522730), (10, 418184), (13, 321680), (16, 261365), (20, 209092), (26, 160840), (40, 104546), (52, 80420), (65, 64336), (80, 52273), (104, 40210), (130, 32168), (208, 20105), (260, 16084), (520, 8042), (1040, 4021)]