20194590

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{977}}^1$

素因数の和:1053

約数の個数: 64

約数和(自身を含む): 53234496

約数和(自身を除く): 33039906

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 53, 65, 78, 106, 130, 159, 195, 265, 318, 390, 530, 689, 795, 977, 1378, 1590, 1954, 2067, 2931, 3445, 4134, 4885, 5862, 6890, 9770, 10335, 12701, 14655, 20670, 25402, 29310, 38103, 51781, 63505, 76206, 103562, 127010, 155343, 190515, 258905, 310686, 381030, 517810, 673153, 776715, 1346306, 1553430, 2019459, 3365765, 4038918, 6731530, 10097295, 20194590]

約数ペア:

[(1, 20194590), (2, 10097295), (3, 6731530), (5, 4038918), (6, 3365765), (10, 2019459), (13, 1553430), (15, 1346306), (26, 776715), (30, 673153), (39, 517810), (53, 381030), (65, 310686), (78, 258905), (106, 190515), (130, 155343), (159, 127010), (195, 103562), (265, 76206), (318, 63505), (390, 51781), (530, 38103), (689, 29310), (795, 25402), (977, 20670), (1378, 14655), (1590, 12701), (1954, 10335), (2067, 9770), (2931, 6890), (3445, 5862), (4134, 4885)]