205517640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{39829}}^1$

素因数の和:39886

約数の個数: 64

約数和(自身を含む): 630907200

約数和(自身を除く): 425389560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 43, 60, 86, 120, 129, 172, 215, 258, 344, 430, 516, 645, 860, 1032, 1290, 1720, 2580, 5160, 39829, 79658, 119487, 159316, 199145, 238974, 318632, 398290, 477948, 597435, 796580, 955896, 1194870, 1593160, 1712647, 2389740, 3425294, 4779480, 5137941, 6850588, 8563235, 10275882, 13701176, 17126470, 20551764, 25689705, 34252940, 41103528, 51379410, 68505880, 102758820, 205517640]

約数ペア:

[(1, 205517640), (2, 102758820), (3, 68505880), (4, 51379410), (5, 41103528), (6, 34252940), (8, 25689705), (10, 20551764), (12, 17126470), (15, 13701176), (20, 10275882), (24, 8563235), (30, 6850588), (40, 5137941), (43, 4779480), (60, 3425294), (86, 2389740), (120, 1712647), (129, 1593160), (172, 1194870), (215, 955896), (258, 796580), (344, 597435), (430, 477948), (516, 398290), (645, 318632), (860, 238974), (1032, 199145), (1290, 159316), (1720, 119487), (2580, 79658), (5160, 39829)]