20210100

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{101}}^1$

素因数の和:170

約数の個数: 144

約数和(自身を含む): 63745920

約数和(自身を除く): 43535820

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 25, 29, 30, 46, 50, 58, 60, 69, 75, 87, 92, 100, 101, 115, 116, 138, 145, 150, 174, 202, 230, 276, 290, 300, 303, 345, 348, 404, 435, 460, 505, 575, 580, 606, 667, 690, 725, 870, 1010, 1150, 1212, 1334, 1380, 1450, 1515, 1725, 1740, 2001, 2020, 2175, 2300, 2323, 2525, 2668, 2900, 2929, 3030, 3335, 3450, 4002, 4350, 4646, 5050, 5858, 6060, 6670, 6900, 6969, 7575, 8004, 8700, 8787, 9292, 10005, 10100, 11615, 11716, 13340, 13938, 14645, 15150, 16675, 17574, 20010, 23230, 27876, 29290, 30300, 33350, 34845, 35148, 40020, 43935, 46460, 50025, 58075, 58580, 66700, 67367, 69690, 73225, 87870, 100050, 116150, 134734, 139380, 146450, 174225, 175740, 200100, 202101, 219675, 232300, 269468, 292900, 336835, 348450, 404202, 439350, 673670, 696900, 808404, 878700, 1010505, 1347340, 1684175, 2021010, 3368350, 4042020, 5052525, 6736700, 10105050, 20210100]

約数ペア:

[(1, 20210100), (2, 10105050), (3, 6736700), (4, 5052525), (5, 4042020), (6, 3368350), (10, 2021010), (12, 1684175), (15, 1347340), (20, 1010505), (23, 878700), (25, 808404), (29, 696900), (30, 673670), (46, 439350), (50, 404202), (58, 348450), (60, 336835), (69, 292900), (75, 269468), (87, 232300), (92, 219675), (100, 202101), (101, 200100), (115, 175740), (116, 174225), (138, 146450), (145, 139380), (150, 134734), (174, 116150), (202, 100050), (230, 87870), (276, 73225), (290, 69690), (300, 67367), (303, 66700), (345, 58580), (348, 58075), (404, 50025), (435, 46460), (460, 43935), (505, 40020), (575, 35148), (580, 34845), (606, 33350), (667, 30300), (690, 29290), (725, 27876), (870, 23230), (1010, 20010), (1150, 17574), (1212, 16675), (1334, 15150), (1380, 14645), (1450, 13938), (1515, 13340), (1725, 11716), (1740, 11615), (2001, 10100), (2020, 10005), (2175, 9292), (2300, 8787), (2323, 8700), (2525, 8004), (2668, 7575), (2900, 6969), (2929, 6900), (3030, 6670), (3335, 6060), (3450, 5858), (4002, 5050), (4350, 4646)]