18746687240

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{439}}^1\times {\mathrm{20143}}^1$

素因数の和:20646

約数の個数: 64

約数和(自身を含む): 43075929600

約数和(自身を除く): 24329242360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 439, 530, 878, 1060, 1756, 2120, 2195, 3512, 4390, 8780, 17560, 20143, 23267, 40286, 46534, 80572, 93068, 100715, 116335, 161144, 186136, 201430, 232670, 402860, 465340, 805720, 930680, 1067579, 2135158, 4270316, 5337895, 8540632, 8842777, 10675790, 17685554, 21351580, 35371108, 42703160, 44213885, 70742216, 88427770, 176855540, 353711080, 468667181, 937334362, 1874668724, 2343335905, 3749337448, 4686671810, 9373343620, 18746687240]

約数ペア:

[(1, 18746687240), (2, 9373343620), (4, 4686671810), (5, 3749337448), (8, 2343335905), (10, 1874668724), (20, 937334362), (40, 468667181), (53, 353711080), (106, 176855540), (212, 88427770), (265, 70742216), (424, 44213885), (439, 42703160), (530, 35371108), (878, 21351580), (1060, 17685554), (1756, 10675790), (2120, 8842777), (2195, 8540632), (3512, 5337895), (4390, 4270316), (8780, 2135158), (17560, 1067579), (20143, 930680), (23267, 805720), (40286, 465340), (46534, 402860), (80572, 232670), (93068, 201430), (100715, 186136), (116335, 161144)]