20880174

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:158

約数の個数: 96

約数和(自身を含む): 52531200

約数和(自身を除く): 31651026

約数列:

[1, 2, 3, 6, 7, 14, 21, 29, 31, 42, 49, 58, 62, 79, 87, 93, 98, 147, 158, 174, 186, 203, 217, 237, 294, 406, 434, 474, 553, 609, 651, 899, 1106, 1218, 1302, 1421, 1519, 1659, 1798, 2291, 2449, 2697, 2842, 3038, 3318, 3871, 4263, 4557, 4582, 4898, 5394, 6293, 6873, 7347, 7742, 8526, 9114, 11613, 12586, 13746, 14694, 16037, 17143, 18879, 23226, 32074, 34286, 37758, 44051, 48111, 51429, 71021, 88102, 96222, 102858, 112259, 120001, 132153, 142042, 213063, 224518, 240002, 264306, 336777, 360003, 426126, 497147, 673554, 720006, 994294, 1491441, 2982882, 3480029, 6960058, 10440087, 20880174]

約数ペア:

[(1, 20880174), (2, 10440087), (3, 6960058), (6, 3480029), (7, 2982882), (14, 1491441), (21, 994294), (29, 720006), (31, 673554), (42, 497147), (49, 426126), (58, 360003), (62, 336777), (79, 264306), (87, 240002), (93, 224518), (98, 213063), (147, 142042), (158, 132153), (174, 120001), (186, 112259), (203, 102858), (217, 96222), (237, 88102), (294, 71021), (406, 51429), (434, 48111), (474, 44051), (553, 37758), (609, 34286), (651, 32074), (899, 23226), (1106, 18879), (1218, 17143), (1302, 16037), (1421, 14694), (1519, 13746), (1659, 12586), (1798, 11613), (2291, 9114), (2449, 8526), (2697, 7742), (2842, 7347), (3038, 6873), (3318, 6293), (3871, 5394), (4263, 4898), (4557, 4582)]