20661056

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1307}}^1$

素因数の和:1351

約数の個数: 56

約数和(自身を含む): 46512480

約数和(自身を除く): 25851424

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 32, 38, 52, 64, 76, 104, 152, 208, 247, 304, 416, 494, 608, 832, 988, 1216, 1307, 1976, 2614, 3952, 5228, 7904, 10456, 15808, 16991, 20912, 24833, 33982, 41824, 49666, 67964, 83648, 99332, 135928, 198664, 271856, 322829, 397328, 543712, 645658, 794656, 1087424, 1291316, 1589312, 2582632, 5165264, 10330528, 20661056]

約数ペア:

[(1, 20661056), (2, 10330528), (4, 5165264), (8, 2582632), (13, 1589312), (16, 1291316), (19, 1087424), (26, 794656), (32, 645658), (38, 543712), (52, 397328), (64, 322829), (76, 271856), (104, 198664), (152, 135928), (208, 99332), (247, 83648), (304, 67964), (416, 49666), (494, 41824), (608, 33982), (832, 24833), (988, 20912), (1216, 16991), (1307, 15808), (1976, 10456), (2614, 7904), (3952, 5228)]