156973190

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1\times {\mathrm{199}}^1$

素因数の和:389

約数の個数: 64

約数和(自身を含む): 317260800

約数和(自身を除く): 160287610

約数列:

[1, 2, 5, 10, 11, 22, 55, 71, 101, 110, 142, 199, 202, 355, 398, 505, 710, 781, 995, 1010, 1111, 1562, 1990, 2189, 2222, 3905, 4378, 5555, 7171, 7810, 10945, 11110, 14129, 14342, 20099, 21890, 28258, 35855, 40198, 70645, 71710, 78881, 100495, 141290, 155419, 157762, 200990, 221089, 310838, 394405, 442178, 777095, 788810, 1105445, 1427029, 1554190, 2210890, 2854058, 7135145, 14270290, 15697319, 31394638, 78486595, 156973190]

約数ペア:

[(1, 156973190), (2, 78486595), (5, 31394638), (10, 15697319), (11, 14270290), (22, 7135145), (55, 2854058), (71, 2210890), (101, 1554190), (110, 1427029), (142, 1105445), (199, 788810), (202, 777095), (355, 442178), (398, 394405), (505, 310838), (710, 221089), (781, 200990), (995, 157762), (1010, 155419), (1111, 141290), (1562, 100495), (1990, 78881), (2189, 71710), (2222, 70645), (3905, 40198), (4378, 35855), (5555, 28258), (7171, 21890), (7810, 20099), (10945, 14342), (11110, 14129)]