80931340

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{269}}^1\times {\mathrm{307}}^1$

素因数の和:599

約数の個数: 72

約数和(自身を含む): 199085040

約数和(自身を除く): 118153700

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 269, 307, 490, 538, 614, 980, 1076, 1228, 1345, 1535, 1883, 2149, 2690, 3070, 3766, 4298, 5380, 6140, 7532, 8596, 9415, 10745, 13181, 15043, 18830, 21490, 26362, 30086, 37660, 42980, 52724, 60172, 65905, 75215, 82583, 131810, 150430, 165166, 263620, 300860, 330332, 412915, 578081, 825830, 1156162, 1651660, 2312324, 2890405, 4046567, 5780810, 8093134, 11561620, 16186268, 20232835, 40465670, 80931340]

約数ペア:

[(1, 80931340), (2, 40465670), (4, 20232835), (5, 16186268), (7, 11561620), (10, 8093134), (14, 5780810), (20, 4046567), (28, 2890405), (35, 2312324), (49, 1651660), (70, 1156162), (98, 825830), (140, 578081), (196, 412915), (245, 330332), (269, 300860), (307, 263620), (490, 165166), (538, 150430), (614, 131810), (980, 82583), (1076, 75215), (1228, 65905), (1345, 60172), (1535, 52724), (1883, 42980), (2149, 37660), (2690, 30086), (3070, 26362), (3766, 21490), (4298, 18830), (5380, 15043), (6140, 13181), (7532, 10745), (8596, 9415)]