72187880

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{44017}}^1$

素因数の和:44069

約数の個数: 32

約数和(自身を含む): 166388040

約数和(自身を除く): 94200160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 44017, 88034, 176068, 220085, 352136, 440170, 880340, 1760680, 1804697, 3609394, 7218788, 9023485, 14437576, 18046970, 36093940, 72187880]

約数ペア:

[(1, 72187880), (2, 36093940), (4, 18046970), (5, 14437576), (8, 9023485), (10, 7218788), (20, 3609394), (40, 1804697), (41, 1760680), (82, 880340), (164, 440170), (205, 352136), (328, 220085), (410, 176068), (820, 88034), (1640, 44017)]