15420615

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{163}}^1$

素因数の和:248

約数の個数: 64

約数和(自身を含む): 30606336

約数和(自身を除く): 15185721

約数列:

[1, 3, 5, 7, 15, 17, 21, 35, 51, 53, 85, 105, 119, 159, 163, 255, 265, 357, 371, 489, 595, 795, 815, 901, 1113, 1141, 1785, 1855, 2445, 2703, 2771, 3423, 4505, 5565, 5705, 6307, 8313, 8639, 13515, 13855, 17115, 18921, 19397, 25917, 31535, 41565, 43195, 58191, 60473, 94605, 96985, 129585, 146863, 181419, 290955, 302365, 440589, 734315, 907095, 1028041, 2202945, 3084123, 5140205, 15420615]

約数ペア:

[(1, 15420615), (3, 5140205), (5, 3084123), (7, 2202945), (15, 1028041), (17, 907095), (21, 734315), (35, 440589), (51, 302365), (53, 290955), (85, 181419), (105, 146863), (119, 129585), (159, 96985), (163, 94605), (255, 60473), (265, 58191), (357, 43195), (371, 41565), (489, 31535), (595, 25917), (795, 19397), (815, 18921), (901, 17115), (1113, 13855), (1141, 13515), (1785, 8639), (1855, 8313), (2445, 6307), (2703, 5705), (2771, 5565), (3423, 4505)]