2100972020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{52289}}^1$

素因数の和:52353

約数の個数: 72

約数和(自身を含む): 5257654920

約数和(自身を除く): 3156682900

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 49, 70, 82, 98, 140, 164, 196, 205, 245, 287, 410, 490, 574, 820, 980, 1148, 1435, 2009, 2870, 4018, 5740, 8036, 10045, 20090, 40180, 52289, 104578, 209156, 261445, 366023, 522890, 732046, 1045780, 1464092, 1830115, 2143849, 2562161, 3660230, 4287698, 5124322, 7320460, 8575396, 10248644, 10719245, 12810805, 15006943, 21438490, 25621610, 30013886, 42876980, 51243220, 60027772, 75034715, 105048601, 150069430, 210097202, 300138860, 420194404, 525243005, 1050486010, 2100972020]

約数ペア:

[(1, 2100972020), (2, 1050486010), (4, 525243005), (5, 420194404), (7, 300138860), (10, 210097202), (14, 150069430), (20, 105048601), (28, 75034715), (35, 60027772), (41, 51243220), (49, 42876980), (70, 30013886), (82, 25621610), (98, 21438490), (140, 15006943), (164, 12810805), (196, 10719245), (205, 10248644), (245, 8575396), (287, 7320460), (410, 5124322), (490, 4287698), (574, 3660230), (820, 2562161), (980, 2143849), (1148, 1830115), (1435, 1464092), (2009, 1045780), (2870, 732046), (4018, 522890), (5740, 366023), (8036, 261445), (10045, 209156), (20090, 104578), (40180, 52289)]