81810816

素因数分解:

$2^7\times 3^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{157}}^1$

素因数の和:256

約数の個数: 128

約数和(自身を含む): 232070400

約数和(自身を除く): 150259584

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 23, 24, 32, 46, 48, 59, 64, 69, 92, 96, 118, 128, 138, 157, 177, 184, 192, 236, 276, 314, 354, 368, 384, 471, 472, 552, 628, 708, 736, 942, 944, 1104, 1256, 1357, 1416, 1472, 1884, 1888, 2208, 2512, 2714, 2832, 2944, 3611, 3768, 3776, 4071, 4416, 5024, 5428, 5664, 7222, 7536, 7552, 8142, 8832, 9263, 10048, 10833, 10856, 11328, 14444, 15072, 16284, 18526, 20096, 21666, 21712, 22656, 27789, 28888, 30144, 32568, 37052, 43332, 43424, 55578, 57776, 60288, 65136, 74104, 86664, 86848, 111156, 115552, 130272, 148208, 173328, 173696, 213049, 222312, 231104, 260544, 296416, 346656, 426098, 444624, 462208, 521088, 592832, 639147, 693312, 852196, 889248, 1185664, 1278294, 1386624, 1704392, 1778496, 2556588, 3408784, 3556992, 5113176, 6817568, 10226352, 13635136, 20452704, 27270272, 40905408, 81810816]

約数ペア:

[(1, 81810816), (2, 40905408), (3, 27270272), (4, 20452704), (6, 13635136), (8, 10226352), (12, 6817568), (16, 5113176), (23, 3556992), (24, 3408784), (32, 2556588), (46, 1778496), (48, 1704392), (59, 1386624), (64, 1278294), (69, 1185664), (92, 889248), (96, 852196), (118, 693312), (128, 639147), (138, 592832), (157, 521088), (177, 462208), (184, 444624), (192, 426098), (236, 346656), (276, 296416), (314, 260544), (354, 231104), (368, 222312), (384, 213049), (471, 173696), (472, 173328), (552, 148208), (628, 130272), (708, 115552), (736, 111156), (942, 86848), (944, 86664), (1104, 74104), (1256, 65136), (1357, 60288), (1416, 57776), (1472, 55578), (1884, 43424), (1888, 43332), (2208, 37052), (2512, 32568), (2714, 30144), (2832, 28888), (2944, 27789), (3611, 22656), (3768, 21712), (3776, 21666), (4071, 20096), (4416, 18526), (5024, 16284), (5428, 15072), (5664, 14444), (7222, 11328), (7536, 10856), (7552, 10833), (8142, 10048), (8832, 9263)]