20637648

素因数分解:

$2^4\times 3^2\times {\mathrm{19}}^2\times {\mathrm{397}}^1$

素因数の和:449

約数の個数: 90

約数和(自身を含む): 61110114

約数和(自身を除く): 40472466

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 19, 24, 36, 38, 48, 57, 72, 76, 114, 144, 152, 171, 228, 304, 342, 361, 397, 456, 684, 722, 794, 912, 1083, 1191, 1368, 1444, 1588, 2166, 2382, 2736, 2888, 3176, 3249, 3573, 4332, 4764, 5776, 6352, 6498, 7146, 7543, 8664, 9528, 12996, 14292, 15086, 17328, 19056, 22629, 25992, 28584, 30172, 45258, 51984, 57168, 60344, 67887, 90516, 120688, 135774, 143317, 181032, 271548, 286634, 362064, 429951, 543096, 573268, 859902, 1086192, 1146536, 1289853, 1719804, 2293072, 2579706, 3439608, 5159412, 6879216, 10318824, 20637648]

約数ペア:

[(1, 20637648), (2, 10318824), (3, 6879216), (4, 5159412), (6, 3439608), (8, 2579706), (9, 2293072), (12, 1719804), (16, 1289853), (18, 1146536), (19, 1086192), (24, 859902), (36, 573268), (38, 543096), (48, 429951), (57, 362064), (72, 286634), (76, 271548), (114, 181032), (144, 143317), (152, 135774), (171, 120688), (228, 90516), (304, 67887), (342, 60344), (361, 57168), (397, 51984), (456, 45258), (684, 30172), (722, 28584), (794, 25992), (912, 22629), (1083, 19056), (1191, 17328), (1368, 15086), (1444, 14292), (1588, 12996), (2166, 9528), (2382, 8664), (2736, 7543), (2888, 7146), (3176, 6498), (3249, 6352), (3573, 5776), (4332, 4764)]