20638590

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{4273}}^1$

素因数の和:4313

約数の個数: 64

約数和(自身を含む): 59083776

約数和(自身を除く): 38445186

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 23, 30, 35, 42, 46, 69, 70, 105, 115, 138, 161, 210, 230, 322, 345, 483, 690, 805, 966, 1610, 2415, 4273, 4830, 8546, 12819, 21365, 25638, 29911, 42730, 59822, 64095, 89733, 98279, 128190, 149555, 179466, 196558, 294837, 299110, 448665, 491395, 589674, 687953, 897330, 982790, 1375906, 1474185, 2063859, 2948370, 3439765, 4127718, 6879530, 10319295, 20638590]

約数ペア:

[(1, 20638590), (2, 10319295), (3, 6879530), (5, 4127718), (6, 3439765), (7, 2948370), (10, 2063859), (14, 1474185), (15, 1375906), (21, 982790), (23, 897330), (30, 687953), (35, 589674), (42, 491395), (46, 448665), (69, 299110), (70, 294837), (105, 196558), (115, 179466), (138, 149555), (161, 128190), (210, 98279), (230, 89733), (322, 64095), (345, 59822), (483, 42730), (690, 29911), (805, 25638), (966, 21365), (1610, 12819), (2415, 8546), (4273, 4830)]