28457830

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{43}}^1\times {\mathrm{229}}^1$

素因数の和:313

約数の個数: 48

約数和(自身を含む): 55923120

約数和(自身を除く): 27465290

約数列:

[1, 2, 5, 10, 17, 34, 43, 85, 86, 170, 215, 229, 289, 430, 458, 578, 731, 1145, 1445, 1462, 2290, 2890, 3655, 3893, 7310, 7786, 9847, 12427, 19465, 19694, 24854, 38930, 49235, 62135, 66181, 98470, 124270, 132362, 167399, 330905, 334798, 661810, 836995, 1673990, 2845783, 5691566, 14228915, 28457830]

約数ペア:

[(1, 28457830), (2, 14228915), (5, 5691566), (10, 2845783), (17, 1673990), (34, 836995), (43, 661810), (85, 334798), (86, 330905), (170, 167399), (215, 132362), (229, 124270), (289, 98470), (430, 66181), (458, 62135), (578, 49235), (731, 38930), (1145, 24854), (1445, 19694), (1462, 19465), (2290, 12427), (2890, 9847), (3655, 7786), (3893, 7310)]