20163879970

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{839}}^1\times {\mathrm{929}}^1$

素因数の和:1987

約数の個数: 64

約数和(自身を含む): 39372480000

約数和(自身を除く): 19208600030

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 199, 398, 839, 929, 995, 1678, 1858, 1990, 2587, 4195, 4645, 5174, 8390, 9290, 10907, 12077, 12935, 21814, 24154, 25870, 54535, 60385, 109070, 120770, 166961, 184871, 333922, 369742, 779431, 834805, 924355, 1558862, 1669610, 1848710, 2170493, 2403323, 3897155, 4340986, 4806646, 7794310, 10132603, 10852465, 12016615, 20265206, 21704930, 24033230, 50663015, 101326030, 155106769, 310213538, 775533845, 1551067690, 2016387997, 4032775994, 10081939985, 20163879970]

約数ペア:

[(1, 20163879970), (2, 10081939985), (5, 4032775994), (10, 2016387997), (13, 1551067690), (26, 775533845), (65, 310213538), (130, 155106769), (199, 101326030), (398, 50663015), (839, 24033230), (929, 21704930), (995, 20265206), (1678, 12016615), (1858, 10852465), (1990, 10132603), (2587, 7794310), (4195, 4806646), (4645, 4340986), (5174, 3897155), (8390, 2403323), (9290, 2170493), (10907, 1848710), (12077, 1669610), (12935, 1558862), (21814, 924355), (24154, 834805), (25870, 779431), (54535, 369742), (60385, 333922), (109070, 184871), (120770, 166961)]