20947366960

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{293}}^1\times {\mathrm{68743}}^1$

素因数の和:69062

約数の個数: 80

約数和(自身を含む): 52628756544

約数和(自身を除く): 31681389584

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 293, 520, 586, 1040, 1172, 1465, 2344, 2930, 3809, 4688, 5860, 7618, 11720, 15236, 19045, 23440, 30472, 38090, 60944, 68743, 76180, 137486, 152360, 274972, 304720, 343715, 549944, 687430, 893659, 1099888, 1374860, 1787318, 2749720, 3574636, 4468295, 5499440, 7149272, 8936590, 14298544, 17873180, 20141699, 35746360, 40283398, 71492720, 80566796, 100708495, 161133592, 201416990, 261842087, 322267184, 402833980, 523684174, 805667960, 1047368348, 1309210435, 1611335920, 2094736696, 2618420870, 4189473392, 5236841740, 10473683480, 20947366960]

約数ペア:

[(1, 20947366960), (2, 10473683480), (4, 5236841740), (5, 4189473392), (8, 2618420870), (10, 2094736696), (13, 1611335920), (16, 1309210435), (20, 1047368348), (26, 805667960), (40, 523684174), (52, 402833980), (65, 322267184), (80, 261842087), (104, 201416990), (130, 161133592), (208, 100708495), (260, 80566796), (293, 71492720), (520, 40283398), (586, 35746360), (1040, 20141699), (1172, 17873180), (1465, 14298544), (2344, 8936590), (2930, 7149272), (3809, 5499440), (4688, 4468295), (5860, 3574636), (7618, 2749720), (11720, 1787318), (15236, 1374860), (19045, 1099888), (23440, 893659), (30472, 687430), (38090, 549944), (60944, 343715), (68743, 304720), (76180, 274972), (137486, 152360)]