81020128

素因数分解:

$2^5\times 7^2\times {\mathrm{163}}^1\times {\mathrm{317}}^1$

素因数の和:504

約数の個数: 72

約数和(自身を含む): 187277832

約数和(自身を除く): 106257704

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 98, 112, 163, 196, 224, 317, 326, 392, 634, 652, 784, 1141, 1268, 1304, 1568, 2219, 2282, 2536, 2608, 4438, 4564, 5072, 5216, 7987, 8876, 9128, 10144, 15533, 15974, 17752, 18256, 31066, 31948, 35504, 36512, 51671, 62132, 63896, 71008, 103342, 124264, 127792, 206684, 248528, 255584, 361697, 413368, 497056, 723394, 826736, 1446788, 1653472, 2531879, 2893576, 5063758, 5787152, 10127516, 11574304, 20255032, 40510064, 81020128]

約数ペア:

[(1, 81020128), (2, 40510064), (4, 20255032), (7, 11574304), (8, 10127516), (14, 5787152), (16, 5063758), (28, 2893576), (32, 2531879), (49, 1653472), (56, 1446788), (98, 826736), (112, 723394), (163, 497056), (196, 413368), (224, 361697), (317, 255584), (326, 248528), (392, 206684), (634, 127792), (652, 124264), (784, 103342), (1141, 71008), (1268, 63896), (1304, 62132), (1568, 51671), (2219, 36512), (2282, 35504), (2536, 31948), (2608, 31066), (4438, 18256), (4564, 17752), (5072, 15974), (5216, 15533), (7987, 10144), (8876, 9128)]