90140220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{21773}}^1$

素因数の和:21811

約数の個数: 72

約数和(自身を含む): 285326496

約数和(自身を除く): 195186276

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 60, 69, 90, 92, 115, 138, 180, 207, 230, 276, 345, 414, 460, 690, 828, 1035, 1380, 2070, 4140, 21773, 43546, 65319, 87092, 108865, 130638, 195957, 217730, 261276, 326595, 391914, 435460, 500779, 653190, 783828, 979785, 1001558, 1306380, 1502337, 1959570, 2003116, 2503895, 3004674, 3919140, 4507011, 5007790, 6009348, 7511685, 9014022, 10015580, 15023370, 18028044, 22535055, 30046740, 45070110, 90140220]

約数ペア:

[(1, 90140220), (2, 45070110), (3, 30046740), (4, 22535055), (5, 18028044), (6, 15023370), (9, 10015580), (10, 9014022), (12, 7511685), (15, 6009348), (18, 5007790), (20, 4507011), (23, 3919140), (30, 3004674), (36, 2503895), (45, 2003116), (46, 1959570), (60, 1502337), (69, 1306380), (90, 1001558), (92, 979785), (115, 783828), (138, 653190), (180, 500779), (207, 435460), (230, 391914), (276, 326595), (345, 261276), (414, 217730), (460, 195957), (690, 130638), (828, 108865), (1035, 87092), (1380, 65319), (2070, 43546), (4140, 21773)]