213123480

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{401}}^1$

素因数の和:561

約数の個数: 128

約数和(自身を含む): 662238720

約数和(自身を除く): 449115240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 43, 60, 86, 103, 120, 129, 172, 206, 215, 258, 309, 344, 401, 412, 430, 515, 516, 618, 645, 802, 824, 860, 1030, 1032, 1203, 1236, 1290, 1545, 1604, 1720, 2005, 2060, 2406, 2472, 2580, 3090, 3208, 4010, 4120, 4429, 4812, 5160, 6015, 6180, 8020, 8858, 9624, 12030, 12360, 13287, 16040, 17243, 17716, 22145, 24060, 26574, 34486, 35432, 41303, 44290, 48120, 51729, 53148, 66435, 68972, 82606, 86215, 88580, 103458, 106296, 123909, 132870, 137944, 165212, 172430, 177160, 206515, 206916, 247818, 258645, 265740, 330424, 344860, 413030, 413832, 495636, 517290, 531480, 619545, 689720, 826060, 991272, 1034580, 1239090, 1652120, 1776029, 2069160, 2478180, 3552058, 4956360, 5328087, 7104116, 8880145, 10656174, 14208232, 17760290, 21312348, 26640435, 35520580, 42624696, 53280870, 71041160, 106561740, 213123480]

約数ペア:

[(1, 213123480), (2, 106561740), (3, 71041160), (4, 53280870), (5, 42624696), (6, 35520580), (8, 26640435), (10, 21312348), (12, 17760290), (15, 14208232), (20, 10656174), (24, 8880145), (30, 7104116), (40, 5328087), (43, 4956360), (60, 3552058), (86, 2478180), (103, 2069160), (120, 1776029), (129, 1652120), (172, 1239090), (206, 1034580), (215, 991272), (258, 826060), (309, 689720), (344, 619545), (401, 531480), (412, 517290), (430, 495636), (515, 413832), (516, 413030), (618, 344860), (645, 330424), (802, 265740), (824, 258645), (860, 247818), (1030, 206916), (1032, 206515), (1203, 177160), (1236, 172430), (1290, 165212), (1545, 137944), (1604, 132870), (1720, 123909), (2005, 106296), (2060, 103458), (2406, 88580), (2472, 86215), (2580, 82606), (3090, 68972), (3208, 66435), (4010, 53148), (4120, 51729), (4429, 48120), (4812, 44290), (5160, 41303), (6015, 35432), (6180, 34486), (8020, 26574), (8858, 24060), (9624, 22145), (12030, 17716), (12360, 17243), (13287, 16040)]