20876640

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:133

約数の個数: 192

約数和(自身を含む): 71995392

約数和(自身を除く): 51118752

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 31, 32, 40, 46, 48, 60, 61, 62, 69, 80, 92, 93, 96, 115, 120, 122, 124, 138, 155, 160, 183, 184, 186, 230, 240, 244, 248, 276, 305, 310, 345, 366, 368, 372, 460, 465, 480, 488, 496, 552, 610, 620, 690, 713, 732, 736, 744, 915, 920, 930, 976, 992, 1104, 1220, 1240, 1380, 1403, 1426, 1464, 1488, 1830, 1840, 1860, 1891, 1952, 2139, 2208, 2440, 2480, 2760, 2806, 2852, 2928, 2976, 3565, 3660, 3680, 3720, 3782, 4209, 4278, 4880, 4960, 5520, 5612, 5673, 5704, 5856, 7015, 7130, 7320, 7440, 7564, 8418, 8556, 9455, 9760, 10695, 11040, 11224, 11346, 11408, 14030, 14260, 14640, 14880, 15128, 16836, 17112, 18910, 21045, 21390, 22448, 22692, 22816, 28060, 28365, 28520, 29280, 30256, 33672, 34224, 37820, 42090, 42780, 43493, 44896, 45384, 56120, 56730, 57040, 60512, 67344, 68448, 75640, 84180, 85560, 86986, 90768, 112240, 113460, 114080, 130479, 134688, 151280, 168360, 171120, 173972, 181536, 217465, 224480, 226920, 260958, 302560, 336720, 342240, 347944, 434930, 453840, 521916, 652395, 673440, 695888, 869860, 907680, 1043832, 1304790, 1391776, 1739720, 2087664, 2609580, 3479440, 4175328, 5219160, 6958880, 10438320, 20876640]

約数ペア:

[(1, 20876640), (2, 10438320), (3, 6958880), (4, 5219160), (5, 4175328), (6, 3479440), (8, 2609580), (10, 2087664), (12, 1739720), (15, 1391776), (16, 1304790), (20, 1043832), (23, 907680), (24, 869860), (30, 695888), (31, 673440), (32, 652395), (40, 521916), (46, 453840), (48, 434930), (60, 347944), (61, 342240), (62, 336720), (69, 302560), (80, 260958), (92, 226920), (93, 224480), (96, 217465), (115, 181536), (120, 173972), (122, 171120), (124, 168360), (138, 151280), (155, 134688), (160, 130479), (183, 114080), (184, 113460), (186, 112240), (230, 90768), (240, 86986), (244, 85560), (248, 84180), (276, 75640), (305, 68448), (310, 67344), (345, 60512), (366, 57040), (368, 56730), (372, 56120), (460, 45384), (465, 44896), (480, 43493), (488, 42780), (496, 42090), (552, 37820), (610, 34224), (620, 33672), (690, 30256), (713, 29280), (732, 28520), (736, 28365), (744, 28060), (915, 22816), (920, 22692), (930, 22448), (976, 21390), (992, 21045), (1104, 18910), (1220, 17112), (1240, 16836), (1380, 15128), (1403, 14880), (1426, 14640), (1464, 14260), (1488, 14030), (1830, 11408), (1840, 11346), (1860, 11224), (1891, 11040), (1952, 10695), (2139, 9760), (2208, 9455), (2440, 8556), (2480, 8418), (2760, 7564), (2806, 7440), (2852, 7320), (2928, 7130), (2976, 7015), (3565, 5856), (3660, 5704), (3680, 5673), (3720, 5612), (3782, 5520), (4209, 4960), (4278, 4880)]