25568760

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{499}}^1$

素因数の和:581

約数の個数: 128

約数和(自身を含む): 89280000

約数和(自身を除く): 63711240

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 61, 70, 84, 105, 120, 122, 140, 168, 183, 210, 244, 280, 305, 366, 420, 427, 488, 499, 610, 732, 840, 854, 915, 998, 1220, 1281, 1464, 1497, 1708, 1830, 1996, 2135, 2440, 2495, 2562, 2994, 3416, 3493, 3660, 3992, 4270, 4990, 5124, 5988, 6405, 6986, 7320, 7485, 8540, 9980, 10248, 10479, 11976, 12810, 13972, 14970, 17080, 17465, 19960, 20958, 25620, 27944, 29940, 30439, 34930, 41916, 51240, 52395, 59880, 60878, 69860, 83832, 91317, 104790, 121756, 139720, 152195, 182634, 209580, 213073, 243512, 304390, 365268, 419160, 426146, 456585, 608780, 639219, 730536, 852292, 913170, 1065365, 1217560, 1278438, 1704584, 1826340, 2130730, 2556876, 3196095, 3652680, 4261460, 5113752, 6392190, 8522920, 12784380, 25568760]

約数ペア:

[(1, 25568760), (2, 12784380), (3, 8522920), (4, 6392190), (5, 5113752), (6, 4261460), (7, 3652680), (8, 3196095), (10, 2556876), (12, 2130730), (14, 1826340), (15, 1704584), (20, 1278438), (21, 1217560), (24, 1065365), (28, 913170), (30, 852292), (35, 730536), (40, 639219), (42, 608780), (56, 456585), (60, 426146), (61, 419160), (70, 365268), (84, 304390), (105, 243512), (120, 213073), (122, 209580), (140, 182634), (168, 152195), (183, 139720), (210, 121756), (244, 104790), (280, 91317), (305, 83832), (366, 69860), (420, 60878), (427, 59880), (488, 52395), (499, 51240), (610, 41916), (732, 34930), (840, 30439), (854, 29940), (915, 27944), (998, 25620), (1220, 20958), (1281, 19960), (1464, 17465), (1497, 17080), (1708, 14970), (1830, 13972), (1996, 12810), (2135, 11976), (2440, 10479), (2495, 10248), (2562, 9980), (2994, 8540), (3416, 7485), (3493, 7320), (3660, 6986), (3992, 6405), (4270, 5988), (4990, 5124)]