16141820

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1\times {\mathrm{131}}^1$

素因数の和:302

約数の個数: 48

約数和(自身を含む): 35060256

約数和(自身を除く): 18918436

約数列:

[1, 2, 4, 5, 10, 20, 61, 101, 122, 131, 202, 244, 262, 305, 404, 505, 524, 610, 655, 1010, 1220, 1310, 2020, 2620, 6161, 7991, 12322, 13231, 15982, 24644, 26462, 30805, 31964, 39955, 52924, 61610, 66155, 79910, 123220, 132310, 159820, 264620, 807091, 1614182, 3228364, 4035455, 8070910, 16141820]

約数ペア:

[(1, 16141820), (2, 8070910), (4, 4035455), (5, 3228364), (10, 1614182), (20, 807091), (61, 264620), (101, 159820), (122, 132310), (131, 123220), (202, 79910), (244, 66155), (262, 61610), (305, 52924), (404, 39955), (505, 31964), (524, 30805), (610, 26462), (655, 24644), (1010, 15982), (1220, 13231), (1310, 12322), (2020, 7991), (2620, 6161)]