20215494

素因数分解:

$2^1\times 3^4\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{331}}^1$

素因数の和:387

約数の個数: 80

約数和(自身を含む): 50616720

約数和(自身を除く): 30401226

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 29, 39, 54, 58, 78, 81, 87, 117, 162, 174, 234, 261, 331, 351, 377, 522, 662, 702, 754, 783, 993, 1053, 1131, 1566, 1986, 2106, 2262, 2349, 2979, 3393, 4303, 4698, 5958, 6786, 8606, 8937, 9599, 10179, 12909, 17874, 19198, 20358, 25818, 26811, 28797, 30537, 38727, 53622, 57594, 61074, 77454, 86391, 116181, 124787, 172782, 232362, 249574, 259173, 348543, 374361, 518346, 697086, 748722, 777519, 1123083, 1555038, 2246166, 3369249, 6738498, 10107747, 20215494]

約数ペア:

[(1, 20215494), (2, 10107747), (3, 6738498), (6, 3369249), (9, 2246166), (13, 1555038), (18, 1123083), (26, 777519), (27, 748722), (29, 697086), (39, 518346), (54, 374361), (58, 348543), (78, 259173), (81, 249574), (87, 232362), (117, 172782), (162, 124787), (174, 116181), (234, 86391), (261, 77454), (331, 61074), (351, 57594), (377, 53622), (522, 38727), (662, 30537), (702, 28797), (754, 26811), (783, 25818), (993, 20358), (1053, 19198), (1131, 17874), (1566, 12909), (1986, 10179), (2106, 9599), (2262, 8937), (2349, 8606), (2979, 6786), (3393, 5958), (4303, 4698)]