207972940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{179}}^1\times {\mathrm{193}}^1$

素因数の和:431

約数の個数: 96

約数和(自身を含む): 516257280

約数和(自身を除く): 308284340

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 70, 86, 140, 172, 179, 193, 215, 301, 358, 386, 430, 602, 716, 772, 860, 895, 965, 1204, 1253, 1351, 1505, 1790, 1930, 2506, 2702, 3010, 3580, 3860, 5012, 5404, 6020, 6265, 6755, 7697, 8299, 12530, 13510, 15394, 16598, 25060, 27020, 30788, 33196, 34547, 38485, 41495, 53879, 58093, 69094, 76970, 82990, 107758, 116186, 138188, 153940, 165980, 172735, 215516, 232372, 241829, 269395, 290465, 345470, 483658, 538790, 580930, 690940, 967316, 1077580, 1161860, 1209145, 1485521, 2418290, 2971042, 4836580, 5942084, 7427605, 10398647, 14855210, 20797294, 29710420, 41594588, 51993235, 103986470, 207972940]

約数ペア:

[(1, 207972940), (2, 103986470), (4, 51993235), (5, 41594588), (7, 29710420), (10, 20797294), (14, 14855210), (20, 10398647), (28, 7427605), (35, 5942084), (43, 4836580), (70, 2971042), (86, 2418290), (140, 1485521), (172, 1209145), (179, 1161860), (193, 1077580), (215, 967316), (301, 690940), (358, 580930), (386, 538790), (430, 483658), (602, 345470), (716, 290465), (772, 269395), (860, 241829), (895, 232372), (965, 215516), (1204, 172735), (1253, 165980), (1351, 153940), (1505, 138188), (1790, 116186), (1930, 107758), (2506, 82990), (2702, 76970), (3010, 69094), (3580, 58093), (3860, 53879), (5012, 41495), (5404, 38485), (6020, 34547), (6265, 33196), (6755, 30788), (7697, 27020), (8299, 25060), (12530, 16598), (13510, 15394)]