211247020

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^2\times {\mathrm{379}}^1$

素因数の和:479

約数の個数: 72

約数和(自身を含む): 475448400

約数和(自身を除く): 264201380

約数列:

[1, 2, 4, 5, 10, 20, 29, 31, 58, 62, 116, 124, 145, 155, 290, 310, 379, 580, 620, 758, 899, 961, 1516, 1798, 1895, 1922, 3596, 3790, 3844, 4495, 4805, 7580, 8990, 9610, 10991, 11749, 17980, 19220, 21982, 23498, 27869, 43964, 46996, 54955, 55738, 58745, 109910, 111476, 117490, 139345, 219820, 234980, 278690, 340721, 364219, 557380, 681442, 728438, 1362884, 1456876, 1703605, 1821095, 3407210, 3642190, 6814420, 7284380, 10562351, 21124702, 42249404, 52811755, 105623510, 211247020]

約数ペア:

[(1, 211247020), (2, 105623510), (4, 52811755), (5, 42249404), (10, 21124702), (20, 10562351), (29, 7284380), (31, 6814420), (58, 3642190), (62, 3407210), (116, 1821095), (124, 1703605), (145, 1456876), (155, 1362884), (290, 728438), (310, 681442), (379, 557380), (580, 364219), (620, 340721), (758, 278690), (899, 234980), (961, 219820), (1516, 139345), (1798, 117490), (1895, 111476), (1922, 109910), (3596, 58745), (3790, 55738), (3844, 54955), (4495, 46996), (4805, 43964), (7580, 27869), (8990, 23498), (9610, 21982), (10991, 19220), (11749, 17980)]