77813960

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{37}}^2$

素因数の和:128

約数の個数: 144

約数和(自身を含む): 216537300

約数和(自身を除く): 138723340

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 35, 37, 40, 49, 56, 58, 70, 74, 98, 116, 140, 145, 148, 185, 196, 203, 232, 245, 259, 280, 290, 296, 370, 392, 406, 490, 518, 580, 740, 812, 980, 1015, 1036, 1073, 1160, 1295, 1369, 1421, 1480, 1624, 1813, 1960, 2030, 2072, 2146, 2590, 2738, 2842, 3626, 4060, 4292, 5180, 5365, 5476, 5684, 6845, 7105, 7252, 7511, 8120, 8584, 9065, 9583, 10360, 10730, 10952, 11368, 13690, 14210, 14504, 15022, 18130, 19166, 21460, 27380, 28420, 30044, 36260, 37555, 38332, 39701, 42920, 47915, 52577, 54760, 56840, 60088, 67081, 72520, 75110, 76664, 79402, 95830, 105154, 134162, 150220, 158804, 191660, 198505, 210308, 262885, 268324, 277907, 300440, 317608, 335405, 383320, 397010, 420616, 525770, 536648, 555814, 670810, 794020, 1051540, 1111628, 1341620, 1389535, 1588040, 1945349, 2103080, 2223256, 2683240, 2779070, 3890698, 5558140, 7781396, 9726745, 11116280, 15562792, 19453490, 38906980, 77813960]

約数ペア:

[(1, 77813960), (2, 38906980), (4, 19453490), (5, 15562792), (7, 11116280), (8, 9726745), (10, 7781396), (14, 5558140), (20, 3890698), (28, 2779070), (29, 2683240), (35, 2223256), (37, 2103080), (40, 1945349), (49, 1588040), (56, 1389535), (58, 1341620), (70, 1111628), (74, 1051540), (98, 794020), (116, 670810), (140, 555814), (145, 536648), (148, 525770), (185, 420616), (196, 397010), (203, 383320), (232, 335405), (245, 317608), (259, 300440), (280, 277907), (290, 268324), (296, 262885), (370, 210308), (392, 198505), (406, 191660), (490, 158804), (518, 150220), (580, 134162), (740, 105154), (812, 95830), (980, 79402), (1015, 76664), (1036, 75110), (1073, 72520), (1160, 67081), (1295, 60088), (1369, 56840), (1421, 54760), (1480, 52577), (1624, 47915), (1813, 42920), (1960, 39701), (2030, 38332), (2072, 37555), (2146, 36260), (2590, 30044), (2738, 28420), (2842, 27380), (3626, 21460), (4060, 19166), (4292, 18130), (5180, 15022), (5365, 14504), (5476, 14210), (5684, 13690), (6845, 11368), (7105, 10952), (7252, 10730), (7511, 10360), (8120, 9583), (8584, 9065)]