80709100

素因数分解:

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

素因数の和:307

約数の個数: 72

約数和(自身を含む): 181144656

約数和(自身を除く): 100435556

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 61, 100, 101, 122, 131, 202, 244, 262, 305, 404, 505, 524, 610, 655, 1010, 1220, 1310, 1525, 2020, 2525, 2620, 3050, 3275, 5050, 6100, 6161, 6550, 7991, 10100, 12322, 13100, 13231, 15982, 24644, 26462, 30805, 31964, 39955, 52924, 61610, 66155, 79910, 123220, 132310, 154025, 159820, 199775, 264620, 308050, 330775, 399550, 616100, 661550, 799100, 807091, 1323100, 1614182, 3228364, 4035455, 8070910, 16141820, 20177275, 40354550, 80709100]

約数ペア:

[(1, 80709100), (2, 40354550), (4, 20177275), (5, 16141820), (10, 8070910), (20, 4035455), (25, 3228364), (50, 1614182), (61, 1323100), (100, 807091), (101, 799100), (122, 661550), (131, 616100), (202, 399550), (244, 330775), (262, 308050), (305, 264620), (404, 199775), (505, 159820), (524, 154025), (610, 132310), (655, 123220), (1010, 79910), (1220, 66155), (1310, 61610), (1525, 52924), (2020, 39955), (2525, 31964), (2620, 30805), (3050, 26462), (3275, 24644), (5050, 15982), (6100, 13231), (6161, 13100), (6550, 12322), (7991, 10100)]