81474900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{13}}^2\times {\mathrm{1607}}^1$

素因数の和:1650

約数の個数: 108

約数和(自身を含む): 255421152

約数和(自身を除く): 173946252

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 39, 50, 52, 60, 65, 75, 78, 100, 130, 150, 156, 169, 195, 260, 300, 325, 338, 390, 507, 650, 676, 780, 845, 975, 1014, 1300, 1607, 1690, 1950, 2028, 2535, 3214, 3380, 3900, 4225, 4821, 5070, 6428, 8035, 8450, 9642, 10140, 12675, 16070, 16900, 19284, 20891, 24105, 25350, 32140, 40175, 41782, 48210, 50700, 62673, 80350, 83564, 96420, 104455, 120525, 125346, 160700, 208910, 241050, 250692, 271583, 313365, 417820, 482100, 522275, 543166, 626730, 814749, 1044550, 1086332, 1253460, 1357915, 1566825, 1629498, 2089100, 2715830, 3133650, 3258996, 4073745, 5431660, 6267300, 6789575, 8147490, 13579150, 16294980, 20368725, 27158300, 40737450, 81474900]

約数ペア:

[(1, 81474900), (2, 40737450), (3, 27158300), (4, 20368725), (5, 16294980), (6, 13579150), (10, 8147490), (12, 6789575), (13, 6267300), (15, 5431660), (20, 4073745), (25, 3258996), (26, 3133650), (30, 2715830), (39, 2089100), (50, 1629498), (52, 1566825), (60, 1357915), (65, 1253460), (75, 1086332), (78, 1044550), (100, 814749), (130, 626730), (150, 543166), (156, 522275), (169, 482100), (195, 417820), (260, 313365), (300, 271583), (325, 250692), (338, 241050), (390, 208910), (507, 160700), (650, 125346), (676, 120525), (780, 104455), (845, 96420), (975, 83564), (1014, 80350), (1300, 62673), (1607, 50700), (1690, 48210), (1950, 41782), (2028, 40175), (2535, 32140), (3214, 25350), (3380, 24105), (3900, 20891), (4225, 19284), (4821, 16900), (5070, 16070), (6428, 12675), (8035, 10140), (8450, 9642)]