256522875

素因数分解:

$3^1\times 5^3\times 7^1\times {\mathrm{79}}^1\times {\mathrm{1237}}^1$

素因数の和:1341

約数の個数: 64

約数和(自身を含む): 494407680

約数和(自身を除く): 237884805

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 79, 105, 125, 175, 237, 375, 395, 525, 553, 875, 1185, 1237, 1659, 1975, 2625, 2765, 3711, 5925, 6185, 8295, 8659, 9875, 13825, 18555, 25977, 29625, 30925, 41475, 43295, 69125, 92775, 97723, 129885, 154625, 207375, 216475, 293169, 463875, 488615, 649425, 684061, 1082375, 1465845, 2052183, 2443075, 3247125, 3420305, 7329225, 10260915, 12215375, 17101525, 36646125, 51304575, 85507625, 256522875]

約数ペア:

[(1, 256522875), (3, 85507625), (5, 51304575), (7, 36646125), (15, 17101525), (21, 12215375), (25, 10260915), (35, 7329225), (75, 3420305), (79, 3247125), (105, 2443075), (125, 2052183), (175, 1465845), (237, 1082375), (375, 684061), (395, 649425), (525, 488615), (553, 463875), (875, 293169), (1185, 216475), (1237, 207375), (1659, 154625), (1975, 129885), (2625, 97723), (2765, 92775), (3711, 69125), (5925, 43295), (6185, 41475), (8295, 30925), (8659, 29625), (9875, 25977), (13825, 18555)]