20178812060

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1361}}^1\times {\mathrm{3547}}^1$

素因数の和:4947

約数の個数: 96

約数和(自身を含む): 48710350080

約数和(自身を除く): 28531538020

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 190, 209, 220, 380, 418, 836, 1045, 1361, 2090, 2722, 3547, 4180, 5444, 6805, 7094, 13610, 14188, 14971, 17735, 25859, 27220, 29942, 35470, 39017, 51718, 59884, 67393, 70940, 74855, 78034, 103436, 129295, 134786, 149710, 156068, 195085, 258590, 269572, 284449, 299420, 336965, 390170, 517180, 568898, 673930, 741323, 780340, 1137796, 1347860, 1422245, 1482646, 2844490, 2965292, 3706615, 4827467, 5688980, 7413230, 9654934, 14826460, 19309868, 24137335, 48274670, 53102137, 91721873, 96549340, 106204274, 183443746, 212408548, 265510685, 366887492, 458609365, 531021370, 917218730, 1008940603, 1062042740, 1834437460, 2017881206, 4035762412, 5044703015, 10089406030, 20178812060]

約数ペア:

[(1, 20178812060), (2, 10089406030), (4, 5044703015), (5, 4035762412), (10, 2017881206), (11, 1834437460), (19, 1062042740), (20, 1008940603), (22, 917218730), (38, 531021370), (44, 458609365), (55, 366887492), (76, 265510685), (95, 212408548), (110, 183443746), (190, 106204274), (209, 96549340), (220, 91721873), (380, 53102137), (418, 48274670), (836, 24137335), (1045, 19309868), (1361, 14826460), (2090, 9654934), (2722, 7413230), (3547, 5688980), (4180, 4827467), (5444, 3706615), (6805, 2965292), (7094, 2844490), (13610, 1482646), (14188, 1422245), (14971, 1347860), (17735, 1137796), (25859, 780340), (27220, 741323), (29942, 673930), (35470, 568898), (39017, 517180), (51718, 390170), (59884, 336965), (67393, 299420), (70940, 284449), (74855, 269572), (78034, 258590), (103436, 195085), (129295, 156068), (134786, 149710)]