20423988

素因数分解:

$2^2\times 3^4\times {\mathrm{13}}^2\times {\mathrm{373}}^1$

素因数の和:415

約数の個数: 90

約数和(自身を含む): 57970374

約数和(自身を除く): 37546386

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 52, 54, 78, 81, 108, 117, 156, 162, 169, 234, 324, 338, 351, 373, 468, 507, 676, 702, 746, 1014, 1053, 1119, 1404, 1492, 1521, 2028, 2106, 2238, 3042, 3357, 4212, 4476, 4563, 4849, 6084, 6714, 9126, 9698, 10071, 13428, 13689, 14547, 18252, 19396, 20142, 27378, 29094, 30213, 40284, 43641, 54756, 58188, 60426, 63037, 87282, 120852, 126074, 130923, 174564, 189111, 252148, 261846, 378222, 392769, 523692, 567333, 756444, 785538, 1134666, 1571076, 1701999, 2269332, 3403998, 5105997, 6807996, 10211994, 20423988]

約数ペア:

[(1, 20423988), (2, 10211994), (3, 6807996), (4, 5105997), (6, 3403998), (9, 2269332), (12, 1701999), (13, 1571076), (18, 1134666), (26, 785538), (27, 756444), (36, 567333), (39, 523692), (52, 392769), (54, 378222), (78, 261846), (81, 252148), (108, 189111), (117, 174564), (156, 130923), (162, 126074), (169, 120852), (234, 87282), (324, 63037), (338, 60426), (351, 58188), (373, 54756), (468, 43641), (507, 40284), (676, 30213), (702, 29094), (746, 27378), (1014, 20142), (1053, 19396), (1119, 18252), (1404, 14547), (1492, 13689), (1521, 13428), (2028, 10071), (2106, 9698), (2238, 9126), (3042, 6714), (3357, 6084), (4212, 4849), (4476, 4563)]