71289680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{163}}^1$

素因数の和:265

約数の個数: 160

約数和(自身を含む): 210843648

約数和(自身を除く): 139553968

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 55, 56, 70, 71, 77, 80, 88, 110, 112, 140, 142, 154, 163, 176, 220, 280, 284, 308, 326, 355, 385, 440, 497, 560, 568, 616, 652, 710, 770, 781, 815, 880, 994, 1136, 1141, 1232, 1304, 1420, 1540, 1562, 1630, 1793, 1988, 2282, 2485, 2608, 2840, 3080, 3124, 3260, 3586, 3905, 3976, 4564, 4970, 5467, 5680, 5705, 6160, 6248, 6520, 7172, 7810, 7952, 8965, 9128, 9940, 10934, 11410, 11573, 12496, 12551, 13040, 14344, 15620, 17930, 18256, 19880, 21868, 22820, 23146, 25102, 27335, 28688, 31240, 35860, 39760, 43736, 45640, 46292, 50204, 54670, 57865, 62480, 62755, 71720, 81011, 87472, 91280, 92584, 100408, 109340, 115730, 125510, 127303, 143440, 162022, 185168, 200816, 218680, 231460, 251020, 254606, 324044, 405055, 437360, 462920, 502040, 509212, 636515, 648088, 810110, 891121, 925840, 1004080, 1018424, 1273030, 1296176, 1620220, 1782242, 2036848, 2546060, 3240440, 3564484, 4455605, 5092120, 6480880, 7128968, 8911210, 10184240, 14257936, 17822420, 35644840, 71289680]

約数ペア:

[(1, 71289680), (2, 35644840), (4, 17822420), (5, 14257936), (7, 10184240), (8, 8911210), (10, 7128968), (11, 6480880), (14, 5092120), (16, 4455605), (20, 3564484), (22, 3240440), (28, 2546060), (35, 2036848), (40, 1782242), (44, 1620220), (55, 1296176), (56, 1273030), (70, 1018424), (71, 1004080), (77, 925840), (80, 891121), (88, 810110), (110, 648088), (112, 636515), (140, 509212), (142, 502040), (154, 462920), (163, 437360), (176, 405055), (220, 324044), (280, 254606), (284, 251020), (308, 231460), (326, 218680), (355, 200816), (385, 185168), (440, 162022), (497, 143440), (560, 127303), (568, 125510), (616, 115730), (652, 109340), (710, 100408), (770, 92584), (781, 91280), (815, 87472), (880, 81011), (994, 71720), (1136, 62755), (1141, 62480), (1232, 57865), (1304, 54670), (1420, 50204), (1540, 46292), (1562, 45640), (1630, 43736), (1793, 39760), (1988, 35860), (2282, 31240), (2485, 28688), (2608, 27335), (2840, 25102), (3080, 23146), (3124, 22820), (3260, 21868), (3586, 19880), (3905, 18256), (3976, 17930), (4564, 15620), (4970, 14344), (5467, 13040), (5680, 12551), (5705, 12496), (6160, 11573), (6248, 11410), (6520, 10934), (7172, 9940), (7810, 9128), (7952, 8965)]