20798720105

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{313}}^1\times {\mathrm{14783}}^1$

素因数の和:15161

約数の個数: 32

約数和(自身を含む): 26738933760

約数和(自身を除く): 5940213655

約数列:

[1, 5, 29, 31, 145, 155, 313, 899, 1565, 4495, 9077, 9703, 14783, 45385, 48515, 73915, 281387, 428707, 458273, 1406935, 2143535, 2291365, 4627079, 13289917, 23135395, 66449585, 134185291, 143439449, 670926455, 717197245, 4159744021, 20798720105]

約数ペア:

[(1, 20798720105), (5, 4159744021), (29, 717197245), (31, 670926455), (145, 143439449), (155, 134185291), (313, 66449585), (899, 23135395), (1565, 13289917), (4495, 4627079), (9077, 2291365), (9703, 2143535), (14783, 1406935), (45385, 458273), (48515, 428707), (73915, 281387)]