20871552

素因数分解:

$2^7\times 3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{113}}^1$

素因数の和:180

約数の個数: 128

約数和(自身を含む): 61860960

約数和(自身を除く): 40989408

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 37, 39, 48, 52, 64, 74, 78, 96, 104, 111, 113, 128, 148, 156, 192, 208, 222, 226, 296, 312, 339, 384, 416, 444, 452, 481, 592, 624, 678, 832, 888, 904, 962, 1184, 1248, 1356, 1443, 1469, 1664, 1776, 1808, 1924, 2368, 2496, 2712, 2886, 2938, 3552, 3616, 3848, 4181, 4407, 4736, 4992, 5424, 5772, 5876, 7104, 7232, 7696, 8362, 8814, 10848, 11544, 11752, 12543, 14208, 14464, 15392, 16724, 17628, 21696, 23088, 23504, 25086, 30784, 33448, 35256, 43392, 46176, 47008, 50172, 54353, 61568, 66896, 70512, 92352, 94016, 100344, 108706, 133792, 141024, 163059, 184704, 188032, 200688, 217412, 267584, 282048, 326118, 401376, 434824, 535168, 564096, 652236, 802752, 869648, 1304472, 1605504, 1739296, 2608944, 3478592, 5217888, 6957184, 10435776, 20871552]

約数ペア:

[(1, 20871552), (2, 10435776), (3, 6957184), (4, 5217888), (6, 3478592), (8, 2608944), (12, 1739296), (13, 1605504), (16, 1304472), (24, 869648), (26, 802752), (32, 652236), (37, 564096), (39, 535168), (48, 434824), (52, 401376), (64, 326118), (74, 282048), (78, 267584), (96, 217412), (104, 200688), (111, 188032), (113, 184704), (128, 163059), (148, 141024), (156, 133792), (192, 108706), (208, 100344), (222, 94016), (226, 92352), (296, 70512), (312, 66896), (339, 61568), (384, 54353), (416, 50172), (444, 47008), (452, 46176), (481, 43392), (592, 35256), (624, 33448), (678, 30784), (832, 25086), (888, 23504), (904, 23088), (962, 21696), (1184, 17628), (1248, 16724), (1356, 15392), (1443, 14464), (1469, 14208), (1664, 12543), (1776, 11752), (1808, 11544), (1924, 10848), (2368, 8814), (2496, 8362), (2712, 7696), (2886, 7232), (2938, 7104), (3552, 5876), (3616, 5772), (3848, 5424), (4181, 4992), (4407, 4736)]