20172680

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{127}}^1$

素因数の和:187

約数の個数: 96

約数和(自身を含む): 52669440

約数和(自身を除く): 32496760

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 38, 40, 44, 55, 76, 88, 95, 110, 127, 152, 190, 209, 220, 254, 361, 380, 418, 440, 508, 635, 722, 760, 836, 1016, 1045, 1270, 1397, 1444, 1672, 1805, 2090, 2413, 2540, 2794, 2888, 3610, 3971, 4180, 4826, 5080, 5588, 6985, 7220, 7942, 8360, 9652, 11176, 12065, 13970, 14440, 15884, 19304, 19855, 24130, 26543, 27940, 31768, 39710, 45847, 48260, 53086, 55880, 79420, 91694, 96520, 106172, 132715, 158840, 183388, 212344, 229235, 265430, 366776, 458470, 504317, 530860, 916940, 1008634, 1061720, 1833880, 2017268, 2521585, 4034536, 5043170, 10086340, 20172680]

約数ペア:

[(1, 20172680), (2, 10086340), (4, 5043170), (5, 4034536), (8, 2521585), (10, 2017268), (11, 1833880), (19, 1061720), (20, 1008634), (22, 916940), (38, 530860), (40, 504317), (44, 458470), (55, 366776), (76, 265430), (88, 229235), (95, 212344), (110, 183388), (127, 158840), (152, 132715), (190, 106172), (209, 96520), (220, 91694), (254, 79420), (361, 55880), (380, 53086), (418, 48260), (440, 45847), (508, 39710), (635, 31768), (722, 27940), (760, 26543), (836, 24130), (1016, 19855), (1045, 19304), (1270, 15884), (1397, 14440), (1444, 13970), (1672, 12065), (1805, 11176), (2090, 9652), (2413, 8360), (2540, 7942), (2794, 7220), (2888, 6985), (3610, 5588), (3971, 5080), (4180, 4826)]