72721360

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47843}}^1$

素因数の和:47875

約数の個数: 40

約数和(自身を含む): 177979680

約数和(自身を除く): 105258320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 47843, 95686, 191372, 239215, 382744, 478430, 765488, 909017, 956860, 1818034, 1913720, 3636068, 3827440, 4545085, 7272136, 9090170, 14544272, 18180340, 36360680, 72721360]

約数ペア:

[(1, 72721360), (2, 36360680), (4, 18180340), (5, 14544272), (8, 9090170), (10, 7272136), (16, 4545085), (19, 3827440), (20, 3636068), (38, 1913720), (40, 1818034), (76, 956860), (80, 909017), (95, 765488), (152, 478430), (190, 382744), (304, 239215), (380, 191372), (760, 95686), (1520, 47843)]