20342672

素因数分解:

$2^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{149}}^1$

素因数の和:240

約数の個数: 80

約数和(自身を含む): 48211200

約数和(自身を除く): 27868528

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 46, 53, 56, 92, 106, 112, 149, 161, 184, 212, 298, 322, 368, 371, 424, 596, 644, 742, 848, 1043, 1192, 1219, 1288, 1484, 2086, 2384, 2438, 2576, 2968, 3427, 4172, 4876, 5936, 6854, 7897, 8344, 8533, 9752, 13708, 15794, 16688, 17066, 19504, 23989, 27416, 31588, 34132, 47978, 54832, 55279, 63176, 68264, 95956, 110558, 126352, 136528, 181631, 191912, 221116, 363262, 383824, 442232, 726524, 884464, 1271417, 1453048, 2542834, 2906096, 5085668, 10171336, 20342672]

約数ペア:

[(1, 20342672), (2, 10171336), (4, 5085668), (7, 2906096), (8, 2542834), (14, 1453048), (16, 1271417), (23, 884464), (28, 726524), (46, 442232), (53, 383824), (56, 363262), (92, 221116), (106, 191912), (112, 181631), (149, 136528), (161, 126352), (184, 110558), (212, 95956), (298, 68264), (322, 63176), (368, 55279), (371, 54832), (424, 47978), (596, 34132), (644, 31588), (742, 27416), (848, 23989), (1043, 19504), (1192, 17066), (1219, 16688), (1288, 15794), (1484, 13708), (2086, 9752), (2384, 8533), (2438, 8344), (2576, 7897), (2968, 6854), (3427, 5936), (4172, 4876)]