81411260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{193}}^1$

素因数の和:363

約数の個数: 96

約数和(自身を含む): 206502912

約数和(自身を除く): 125091652

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 131, 140, 161, 193, 230, 262, 322, 386, 460, 524, 644, 655, 772, 805, 917, 965, 1310, 1351, 1610, 1834, 1930, 2620, 2702, 3013, 3220, 3668, 3860, 4439, 4585, 5404, 6026, 6755, 8878, 9170, 12052, 13510, 15065, 17756, 18340, 21091, 22195, 25283, 27020, 30130, 31073, 42182, 44390, 50566, 60260, 62146, 84364, 88780, 101132, 105455, 124292, 126415, 155365, 176981, 210910, 252830, 310730, 353962, 421820, 505660, 581509, 621460, 707924, 884905, 1163018, 1769810, 2326036, 2907545, 3539620, 4070563, 5815090, 8141126, 11630180, 16282252, 20352815, 40705630, 81411260]

約数ペア:

[(1, 81411260), (2, 40705630), (4, 20352815), (5, 16282252), (7, 11630180), (10, 8141126), (14, 5815090), (20, 4070563), (23, 3539620), (28, 2907545), (35, 2326036), (46, 1769810), (70, 1163018), (92, 884905), (115, 707924), (131, 621460), (140, 581509), (161, 505660), (193, 421820), (230, 353962), (262, 310730), (322, 252830), (386, 210910), (460, 176981), (524, 155365), (644, 126415), (655, 124292), (772, 105455), (805, 101132), (917, 88780), (965, 84364), (1310, 62146), (1351, 60260), (1610, 50566), (1834, 44390), (1930, 42182), (2620, 31073), (2702, 30130), (3013, 27020), (3220, 25283), (3668, 22195), (3860, 21091), (4439, 18340), (4585, 17756), (5404, 15065), (6026, 13510), (6755, 12052), (8878, 9170)]