64860975

素因数分解:

$3^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1$

素因数の和:225

約数の個数: 72

約数和(自身を含む): 121867200

約数和(自身を除く): 57006225

約数列:

[1, 3, 5, 9, 15, 25, 41, 45, 75, 79, 89, 123, 205, 225, 237, 267, 369, 395, 445, 615, 711, 801, 1025, 1185, 1335, 1845, 1975, 2225, 3075, 3239, 3555, 3649, 4005, 5925, 6675, 7031, 9225, 9717, 10947, 16195, 17775, 18245, 20025, 21093, 29151, 32841, 35155, 48585, 54735, 63279, 80975, 91225, 105465, 145755, 164205, 175775, 242925, 273675, 288271, 316395, 527325, 728775, 821025, 864813, 1441355, 1581975, 2594439, 4324065, 7206775, 12972195, 21620325, 64860975]

約数ペア:

[(1, 64860975), (3, 21620325), (5, 12972195), (9, 7206775), (15, 4324065), (25, 2594439), (41, 1581975), (45, 1441355), (75, 864813), (79, 821025), (89, 728775), (123, 527325), (205, 316395), (225, 288271), (237, 273675), (267, 242925), (369, 175775), (395, 164205), (445, 145755), (615, 105465), (711, 91225), (801, 80975), (1025, 63279), (1185, 54735), (1335, 48585), (1845, 35155), (1975, 32841), (2225, 29151), (3075, 21093), (3239, 20025), (3555, 18245), (3649, 17775), (4005, 16195), (5925, 10947), (6675, 9717), (7031, 9225)]