78666560

素因数分解:

$2^6\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{173}}^1$

素因数の和:233

約数の個数: 168

約数和(自身を含む): 226725480

約数和(自身を除く): 148058920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 32, 35, 40, 49, 56, 58, 64, 70, 80, 98, 112, 116, 140, 145, 160, 173, 196, 203, 224, 232, 245, 280, 290, 320, 346, 392, 406, 448, 464, 490, 560, 580, 692, 784, 812, 865, 928, 980, 1015, 1120, 1160, 1211, 1384, 1421, 1568, 1624, 1730, 1856, 1960, 2030, 2240, 2320, 2422, 2768, 2842, 3136, 3248, 3460, 3920, 4060, 4640, 4844, 5017, 5536, 5684, 6055, 6496, 6920, 7105, 7840, 8120, 8477, 9280, 9688, 10034, 11072, 11368, 12110, 12992, 13840, 14210, 15680, 16240, 16954, 19376, 20068, 22736, 24220, 25085, 27680, 28420, 32480, 33908, 35119, 38752, 40136, 42385, 45472, 48440, 50170, 55360, 56840, 64960, 67816, 70238, 77504, 80272, 84770, 90944, 96880, 100340, 113680, 135632, 140476, 160544, 169540, 175595, 193760, 200680, 227360, 245833, 271264, 280952, 321088, 339080, 351190, 387520, 401360, 454720, 491666, 542528, 561904, 678160, 702380, 802720, 983332, 1123808, 1229165, 1356320, 1404760, 1605440, 1966664, 2247616, 2458330, 2712640, 2809520, 3933328, 4916660, 5619040, 7866656, 9833320, 11238080, 15733312, 19666640, 39333280, 78666560]

約数ペア:

[(1, 78666560), (2, 39333280), (4, 19666640), (5, 15733312), (7, 11238080), (8, 9833320), (10, 7866656), (14, 5619040), (16, 4916660), (20, 3933328), (28, 2809520), (29, 2712640), (32, 2458330), (35, 2247616), (40, 1966664), (49, 1605440), (56, 1404760), (58, 1356320), (64, 1229165), (70, 1123808), (80, 983332), (98, 802720), (112, 702380), (116, 678160), (140, 561904), (145, 542528), (160, 491666), (173, 454720), (196, 401360), (203, 387520), (224, 351190), (232, 339080), (245, 321088), (280, 280952), (290, 271264), (320, 245833), (346, 227360), (392, 200680), (406, 193760), (448, 175595), (464, 169540), (490, 160544), (560, 140476), (580, 135632), (692, 113680), (784, 100340), (812, 96880), (865, 90944), (928, 84770), (980, 80272), (1015, 77504), (1120, 70238), (1160, 67816), (1211, 64960), (1384, 56840), (1421, 55360), (1568, 50170), (1624, 48440), (1730, 45472), (1856, 42385), (1960, 40136), (2030, 38752), (2240, 35119), (2320, 33908), (2422, 32480), (2768, 28420), (2842, 27680), (3136, 25085), (3248, 24220), (3460, 22736), (3920, 20068), (4060, 19376), (4640, 16954), (4844, 16240), (5017, 15680), (5536, 14210), (5684, 13840), (6055, 12992), (6496, 12110), (6920, 11368), (7105, 11072), (7840, 10034), (8120, 9688), (8477, 9280)]