20042751625

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{7507}}^1$

素因数の和:7619

約数の個数: 64

約数和(自身を含む): 28334831616

約数和(自身を除く): 8292079991

約数列:

[1, 5, 13, 25, 31, 53, 65, 125, 155, 265, 325, 403, 689, 775, 1325, 1625, 1643, 2015, 3445, 3875, 6625, 7507, 8215, 10075, 17225, 21359, 37535, 41075, 50375, 86125, 97591, 106795, 187675, 205375, 232717, 397871, 487955, 533975, 938375, 1163585, 1989355, 2439775, 2669875, 3025321, 5172323, 5817925, 9946775, 12198875, 12334001, 15126605, 25861615, 29089625, 49733875, 61670005, 75633025, 129308075, 160342013, 308350025, 378165125, 646540375, 801710065, 1541750125, 4008550325, 20042751625]

約数ペア:

[(1, 20042751625), (5, 4008550325), (13, 1541750125), (25, 801710065), (31, 646540375), (53, 378165125), (65, 308350025), (125, 160342013), (155, 129308075), (265, 75633025), (325, 61670005), (403, 49733875), (689, 29089625), (775, 25861615), (1325, 15126605), (1625, 12334001), (1643, 12198875), (2015, 9946775), (3445, 5817925), (3875, 5172323), (6625, 3025321), (7507, 2669875), (8215, 2439775), (10075, 1989355), (17225, 1163585), (21359, 938375), (37535, 533975), (41075, 487955), (50375, 397871), (86125, 232717), (97591, 205375), (106795, 187675)]