18700741840

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{21250843}}^1$

素因数の和:21250867

約数の個数: 40

約数和(自身を含む): 47431883808

約数和(自身を除く): 28731141968

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 21250843, 42501686, 85003372, 106254215, 170006744, 212508430, 233759273, 340013488, 425016860, 467518546, 850033720, 935037092, 1168796365, 1700067440, 1870074184, 2337592730, 3740148368, 4675185460, 9350370920, 18700741840]

約数ペア:

[(1, 18700741840), (2, 9350370920), (4, 4675185460), (5, 3740148368), (8, 2337592730), (10, 1870074184), (11, 1700067440), (16, 1168796365), (20, 935037092), (22, 850033720), (40, 467518546), (44, 425016860), (55, 340013488), (80, 233759273), (88, 212508430), (110, 170006744), (176, 106254215), (220, 85003372), (440, 42501686), (880, 21250843)]