72639540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{403553}}^1$

素因数の和:403568

約数の個数: 36

約数和(自身を含む): 220340484

約数和(自身を除く): 147700944

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 403553, 807106, 1210659, 1614212, 2017765, 2421318, 3631977, 4035530, 4842636, 6053295, 7263954, 8071060, 12106590, 14527908, 18159885, 24213180, 36319770, 72639540]

約数ペア:

[(1, 72639540), (2, 36319770), (3, 24213180), (4, 18159885), (5, 14527908), (6, 12106590), (9, 8071060), (10, 7263954), (12, 6053295), (15, 4842636), (18, 4035530), (20, 3631977), (30, 2421318), (36, 2017765), (45, 1614212), (60, 1210659), (90, 807106), (180, 403553)]