20384490

素因数分解:

$2^1\times 3^1\times 5^1\times 7^4\times {\mathrm{283}}^1$

素因数の和:321

約数の個数: 80

約数和(自身を含む): 57274848

約数和(自身を除く): 36890358

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 49, 70, 98, 105, 147, 210, 245, 283, 294, 343, 490, 566, 686, 735, 849, 1029, 1415, 1470, 1698, 1715, 1981, 2058, 2401, 2830, 3430, 3962, 4245, 4802, 5145, 5943, 7203, 8490, 9905, 10290, 11886, 12005, 13867, 14406, 19810, 24010, 27734, 29715, 36015, 41601, 59430, 69335, 72030, 83202, 97069, 138670, 194138, 208005, 291207, 416010, 485345, 582414, 679483, 970690, 1358966, 1456035, 2038449, 2912070, 3397415, 4076898, 6794830, 10192245, 20384490]

約数ペア:

[(1, 20384490), (2, 10192245), (3, 6794830), (5, 4076898), (6, 3397415), (7, 2912070), (10, 2038449), (14, 1456035), (15, 1358966), (21, 970690), (30, 679483), (35, 582414), (42, 485345), (49, 416010), (70, 291207), (98, 208005), (105, 194138), (147, 138670), (210, 97069), (245, 83202), (283, 72030), (294, 69335), (343, 59430), (490, 41601), (566, 36015), (686, 29715), (735, 27734), (849, 24010), (1029, 19810), (1415, 14406), (1470, 13867), (1698, 12005), (1715, 11886), (1981, 10290), (2058, 9905), (2401, 8490), (2830, 7203), (3430, 5943), (3962, 5145), (4245, 4802)]