637904384

素因数分解:

$2^9\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{401}}^1$

素因数の和:671

約数の個数: 80

約数和(自身を含む): 1381786560

約数和(自身を除く): 743882176

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 239, 256, 401, 416, 478, 512, 802, 832, 956, 1604, 1664, 1912, 3107, 3208, 3328, 3824, 5213, 6214, 6416, 6656, 7648, 10426, 12428, 12832, 15296, 20852, 24856, 25664, 30592, 41704, 49712, 51328, 61184, 83408, 95839, 99424, 102656, 122368, 166816, 191678, 198848, 205312, 333632, 383356, 397696, 667264, 766712, 795392, 1245907, 1334528, 1533424, 1590784, 2491814, 2669056, 3066848, 4983628, 6133696, 9967256, 12267392, 19934512, 24534784, 39869024, 49069568, 79738048, 159476096, 318952192, 637904384]

約数ペア:

[(1, 637904384), (2, 318952192), (4, 159476096), (8, 79738048), (13, 49069568), (16, 39869024), (26, 24534784), (32, 19934512), (52, 12267392), (64, 9967256), (104, 6133696), (128, 4983628), (208, 3066848), (239, 2669056), (256, 2491814), (401, 1590784), (416, 1533424), (478, 1334528), (512, 1245907), (802, 795392), (832, 766712), (956, 667264), (1604, 397696), (1664, 383356), (1912, 333632), (3107, 205312), (3208, 198848), (3328, 191678), (3824, 166816), (5213, 122368), (6214, 102656), (6416, 99424), (6656, 95839), (7648, 83408), (10426, 61184), (12428, 51328), (12832, 49712), (15296, 41704), (20852, 30592), (24856, 25664)]