31040680

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1$

素因数の和:167

約数の個数: 128

約数和(自身を含む): 82944000

約数和(自身を除く): 51903320

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 38, 40, 44, 47, 55, 76, 79, 88, 94, 95, 110, 152, 158, 188, 190, 209, 220, 235, 316, 376, 380, 395, 418, 440, 470, 517, 632, 760, 790, 836, 869, 893, 940, 1034, 1045, 1501, 1580, 1672, 1738, 1786, 1880, 2068, 2090, 2585, 3002, 3160, 3476, 3572, 3713, 4136, 4180, 4345, 4465, 5170, 6004, 6952, 7144, 7426, 7505, 8360, 8690, 8930, 9823, 10340, 12008, 14852, 15010, 16511, 17380, 17860, 18565, 19646, 20680, 29704, 30020, 33022, 34760, 35720, 37130, 39292, 40843, 49115, 60040, 66044, 70547, 74260, 78584, 81686, 82555, 98230, 132088, 141094, 148520, 163372, 165110, 196460, 204215, 282188, 326744, 330220, 352735, 392920, 408430, 564376, 660440, 705470, 776017, 816860, 1410940, 1552034, 1633720, 2821880, 3104068, 3880085, 6208136, 7760170, 15520340, 31040680]

約数ペア:

[(1, 31040680), (2, 15520340), (4, 7760170), (5, 6208136), (8, 3880085), (10, 3104068), (11, 2821880), (19, 1633720), (20, 1552034), (22, 1410940), (38, 816860), (40, 776017), (44, 705470), (47, 660440), (55, 564376), (76, 408430), (79, 392920), (88, 352735), (94, 330220), (95, 326744), (110, 282188), (152, 204215), (158, 196460), (188, 165110), (190, 163372), (209, 148520), (220, 141094), (235, 132088), (316, 98230), (376, 82555), (380, 81686), (395, 78584), (418, 74260), (440, 70547), (470, 66044), (517, 60040), (632, 49115), (760, 40843), (790, 39292), (836, 37130), (869, 35720), (893, 34760), (940, 33022), (1034, 30020), (1045, 29704), (1501, 20680), (1580, 19646), (1672, 18565), (1738, 17860), (1786, 17380), (1880, 16511), (2068, 15010), (2090, 14852), (2585, 12008), (3002, 10340), (3160, 9823), (3476, 8930), (3572, 8690), (3713, 8360), (4136, 7505), (4180, 7426), (4345, 7144), (4465, 6952), (5170, 6004)]