20122172920

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{2237}}^1\times {\mathrm{4243}}^1$

素因数の和:6544

約数の個数: 64

約数和(自身を含む): 46160629920

約数和(自身を除く): 26038457000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 2237, 4243, 4474, 8486, 8948, 11185, 16972, 17896, 21215, 22370, 33944, 42430, 44740, 84860, 89480, 118561, 169720, 224879, 237122, 449758, 474244, 592805, 899516, 948488, 1124395, 1185610, 1799032, 2248790, 2371220, 4497580, 4742440, 8995160, 9491591, 18983182, 37966364, 47457955, 75932728, 94915910, 189831820, 379663640, 503054323, 1006108646, 2012217292, 2515271615, 4024434584, 5030543230, 10061086460, 20122172920]

約数ペア:

[(1, 20122172920), (2, 10061086460), (4, 5030543230), (5, 4024434584), (8, 2515271615), (10, 2012217292), (20, 1006108646), (40, 503054323), (53, 379663640), (106, 189831820), (212, 94915910), (265, 75932728), (424, 47457955), (530, 37966364), (1060, 18983182), (2120, 9491591), (2237, 8995160), (4243, 4742440), (4474, 4497580), (8486, 2371220), (8948, 2248790), (11185, 1799032), (16972, 1185610), (17896, 1124395), (21215, 948488), (22370, 899516), (33944, 592805), (42430, 474244), (44740, 449758), (84860, 237122), (89480, 224879), (118561, 169720)]