18538160

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{317}}^1$

素因数の和:390

約数の個数: 80

約数和(自身を含む): 46845216

約数和(自身を除く): 28307056

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 43, 68, 80, 85, 86, 136, 170, 172, 215, 272, 317, 340, 344, 430, 634, 680, 688, 731, 860, 1268, 1360, 1462, 1585, 1720, 2536, 2924, 3170, 3440, 3655, 5072, 5389, 5848, 6340, 7310, 10778, 11696, 12680, 13631, 14620, 21556, 25360, 26945, 27262, 29240, 43112, 53890, 54524, 58480, 68155, 86224, 107780, 109048, 136310, 215560, 218096, 231727, 272620, 431120, 463454, 545240, 926908, 1090480, 1158635, 1853816, 2317270, 3707632, 4634540, 9269080, 18538160]

約数ペア:

[(1, 18538160), (2, 9269080), (4, 4634540), (5, 3707632), (8, 2317270), (10, 1853816), (16, 1158635), (17, 1090480), (20, 926908), (34, 545240), (40, 463454), (43, 431120), (68, 272620), (80, 231727), (85, 218096), (86, 215560), (136, 136310), (170, 109048), (172, 107780), (215, 86224), (272, 68155), (317, 58480), (340, 54524), (344, 53890), (430, 43112), (634, 29240), (680, 27262), (688, 26945), (731, 25360), (860, 21556), (1268, 14620), (1360, 13631), (1462, 12680), (1585, 11696), (1720, 10778), (2536, 7310), (2924, 6340), (3170, 5848), (3440, 5389), (3655, 5072)]