64906425

素因数分解:

$3^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{239}}^1$

素因数の和:343

約数の個数: 72

約数和(自身を含む): 125349120

約数和(自身を除く): 60442695

約数列:

[1, 3, 5, 9, 15, 17, 25, 45, 51, 71, 75, 85, 153, 213, 225, 239, 255, 355, 425, 639, 717, 765, 1065, 1195, 1207, 1275, 1775, 2151, 3195, 3585, 3621, 3825, 4063, 5325, 5975, 6035, 10755, 10863, 12189, 15975, 16969, 17925, 18105, 20315, 30175, 36567, 50907, 53775, 54315, 60945, 84845, 90525, 101575, 152721, 182835, 254535, 271575, 288473, 304725, 424225, 763605, 865419, 914175, 1272675, 1442365, 2596257, 3818025, 4327095, 7211825, 12981285, 21635475, 64906425]

約数ペア:

[(1, 64906425), (3, 21635475), (5, 12981285), (9, 7211825), (15, 4327095), (17, 3818025), (25, 2596257), (45, 1442365), (51, 1272675), (71, 914175), (75, 865419), (85, 763605), (153, 424225), (213, 304725), (225, 288473), (239, 271575), (255, 254535), (355, 182835), (425, 152721), (639, 101575), (717, 90525), (765, 84845), (1065, 60945), (1195, 54315), (1207, 53775), (1275, 50907), (1775, 36567), (2151, 30175), (3195, 20315), (3585, 18105), (3621, 17925), (3825, 16969), (4063, 15975), (5325, 12189), (5975, 10863), (6035, 10755)]