51981920

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{659}}^1$

素因数の和:720

約数の個数: 96

約数和(自身を含む): 134719200

約数和(自身を除く): 82737280

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 29, 32, 34, 40, 58, 68, 80, 85, 116, 136, 145, 160, 170, 232, 272, 290, 340, 464, 493, 544, 580, 659, 680, 928, 986, 1160, 1318, 1360, 1972, 2320, 2465, 2636, 2720, 3295, 3944, 4640, 4930, 5272, 6590, 7888, 9860, 10544, 11203, 13180, 15776, 19111, 19720, 21088, 22406, 26360, 38222, 39440, 44812, 52720, 56015, 76444, 78880, 89624, 95555, 105440, 112030, 152888, 179248, 191110, 224060, 305776, 324887, 358496, 382220, 448120, 611552, 649774, 764440, 896240, 1299548, 1528880, 1624435, 1792480, 2599096, 3057760, 3248870, 5198192, 6497740, 10396384, 12995480, 25990960, 51981920]

約数ペア:

[(1, 51981920), (2, 25990960), (4, 12995480), (5, 10396384), (8, 6497740), (10, 5198192), (16, 3248870), (17, 3057760), (20, 2599096), (29, 1792480), (32, 1624435), (34, 1528880), (40, 1299548), (58, 896240), (68, 764440), (80, 649774), (85, 611552), (116, 448120), (136, 382220), (145, 358496), (160, 324887), (170, 305776), (232, 224060), (272, 191110), (290, 179248), (340, 152888), (464, 112030), (493, 105440), (544, 95555), (580, 89624), (659, 78880), (680, 76444), (928, 56015), (986, 52720), (1160, 44812), (1318, 39440), (1360, 38222), (1972, 26360), (2320, 22406), (2465, 21088), (2636, 19720), (2720, 19111), (3295, 15776), (3944, 13180), (4640, 11203), (4930, 10544), (5272, 9860), (6590, 7888)]