20219120

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{14867}}^1$

素因数の和:14897

約数の個数: 40

約数和(自身を含む): 49778064

約数和(自身を除く): 29558944

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 14867, 29734, 59468, 74335, 118936, 148670, 237872, 252739, 297340, 505478, 594680, 1010956, 1189360, 1263695, 2021912, 2527390, 4043824, 5054780, 10109560, 20219120]

約数ペア:

[(1, 20219120), (2, 10109560), (4, 5054780), (5, 4043824), (8, 2527390), (10, 2021912), (16, 1263695), (17, 1189360), (20, 1010956), (34, 594680), (40, 505478), (68, 297340), (80, 252739), (85, 237872), (136, 148670), (170, 118936), (272, 74335), (340, 59468), (680, 29734), (1360, 14867)]