7887880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1$

素因数の和:239

約数の個数: 128

約数和(自身を含む): 23950080

約数和(自身を除く): 16062200

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 20, 22, 26, 28, 35, 40, 44, 52, 55, 56, 65, 70, 77, 88, 91, 104, 110, 130, 140, 143, 154, 182, 197, 220, 260, 280, 286, 308, 364, 385, 394, 440, 455, 520, 572, 616, 715, 728, 770, 788, 910, 985, 1001, 1144, 1379, 1430, 1540, 1576, 1820, 1970, 2002, 2167, 2561, 2758, 2860, 3080, 3640, 3940, 4004, 4334, 5005, 5122, 5516, 5720, 6895, 7880, 8008, 8668, 10010, 10244, 10835, 11032, 12805, 13790, 15169, 17336, 17927, 20020, 20488, 21670, 25610, 27580, 28171, 30338, 35854, 40040, 43340, 51220, 55160, 56342, 60676, 71708, 75845, 86680, 89635, 102440, 112684, 121352, 140855, 143416, 151690, 179270, 197197, 225368, 281710, 303380, 358540, 394394, 563420, 606760, 717080, 788788, 985985, 1126840, 1577576, 1971970, 3943940, 7887880]

約数ペア:

[(1, 7887880), (2, 3943940), (4, 1971970), (5, 1577576), (7, 1126840), (8, 985985), (10, 788788), (11, 717080), (13, 606760), (14, 563420), (20, 394394), (22, 358540), (26, 303380), (28, 281710), (35, 225368), (40, 197197), (44, 179270), (52, 151690), (55, 143416), (56, 140855), (65, 121352), (70, 112684), (77, 102440), (88, 89635), (91, 86680), (104, 75845), (110, 71708), (130, 60676), (140, 56342), (143, 55160), (154, 51220), (182, 43340), (197, 40040), (220, 35854), (260, 30338), (280, 28171), (286, 27580), (308, 25610), (364, 21670), (385, 20488), (394, 20020), (440, 17927), (455, 17336), (520, 15169), (572, 13790), (616, 12805), (715, 11032), (728, 10835), (770, 10244), (788, 10010), (910, 8668), (985, 8008), (1001, 7880), (1144, 6895), (1379, 5720), (1430, 5516), (1540, 5122), (1576, 5005), (1820, 4334), (1970, 4004), (2002, 3940), (2167, 3640), (2561, 3080), (2758, 2860)]