20401964

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{271}}^1$

素因数の和:374

約数の個数: 48

約数和(自身を含む): 41126400

約数和(自身を除く): 20724436

約数列:

[1, 2, 4, 11, 22, 29, 44, 58, 59, 116, 118, 236, 271, 319, 542, 638, 649, 1084, 1276, 1298, 1711, 2596, 2981, 3422, 5962, 6844, 7859, 11924, 15718, 15989, 18821, 31436, 31978, 37642, 63956, 75284, 86449, 172898, 175879, 345796, 351758, 463681, 703516, 927362, 1854724, 5100491, 10200982, 20401964]

約数ペア:

[(1, 20401964), (2, 10200982), (4, 5100491), (11, 1854724), (22, 927362), (29, 703516), (44, 463681), (58, 351758), (59, 345796), (116, 175879), (118, 172898), (236, 86449), (271, 75284), (319, 63956), (542, 37642), (638, 31978), (649, 31436), (1084, 18821), (1276, 15989), (1298, 15718), (1711, 11924), (2596, 7859), (2981, 6844), (3422, 5962)]