255356920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{73}}^1$

素因数の和:166

約数の個数: 192

約数和(自身を含む): 740698560

約数和(自身を除く): 485341640

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 31, 35, 40, 52, 56, 62, 65, 70, 73, 91, 104, 124, 130, 140, 146, 155, 182, 217, 248, 260, 280, 292, 310, 364, 365, 403, 434, 455, 511, 520, 584, 620, 728, 730, 806, 868, 910, 949, 961, 1022, 1085, 1240, 1460, 1612, 1736, 1820, 1898, 1922, 2015, 2044, 2170, 2263, 2555, 2821, 2920, 3224, 3640, 3796, 3844, 4030, 4088, 4340, 4526, 4745, 4805, 5110, 5642, 6643, 6727, 7592, 7688, 8060, 8680, 9052, 9490, 9610, 10220, 11284, 11315, 12493, 13286, 13454, 14105, 15841, 16120, 18104, 18980, 19220, 20440, 22568, 22630, 24986, 26572, 26908, 28210, 29419, 31682, 33215, 33635, 37960, 38440, 45260, 49972, 53144, 53816, 56420, 58838, 62465, 63364, 66430, 67270, 70153, 79205, 87451, 90520, 99944, 112840, 117676, 124930, 126728, 132860, 134540, 140306, 147095, 158410, 174902, 205933, 235352, 249860, 265720, 269080, 280612, 294190, 316820, 349804, 350765, 411866, 437255, 491071, 499720, 561224, 588380, 633640, 699608, 701530, 823732, 874510, 911989, 982142, 1029665, 1176760, 1403060, 1647464, 1749020, 1823978, 1964284, 2059330, 2455355, 2806120, 3498040, 3647956, 3928568, 4118660, 4559945, 4910710, 6383923, 7295912, 8237320, 9119890, 9821420, 12767846, 18239780, 19642840, 25535692, 31919615, 36479560, 51071384, 63839230, 127678460, 255356920]

約数ペア:

[(1, 255356920), (2, 127678460), (4, 63839230), (5, 51071384), (7, 36479560), (8, 31919615), (10, 25535692), (13, 19642840), (14, 18239780), (20, 12767846), (26, 9821420), (28, 9119890), (31, 8237320), (35, 7295912), (40, 6383923), (52, 4910710), (56, 4559945), (62, 4118660), (65, 3928568), (70, 3647956), (73, 3498040), (91, 2806120), (104, 2455355), (124, 2059330), (130, 1964284), (140, 1823978), (146, 1749020), (155, 1647464), (182, 1403060), (217, 1176760), (248, 1029665), (260, 982142), (280, 911989), (292, 874510), (310, 823732), (364, 701530), (365, 699608), (403, 633640), (434, 588380), (455, 561224), (511, 499720), (520, 491071), (584, 437255), (620, 411866), (728, 350765), (730, 349804), (806, 316820), (868, 294190), (910, 280612), (949, 269080), (961, 265720), (1022, 249860), (1085, 235352), (1240, 205933), (1460, 174902), (1612, 158410), (1736, 147095), (1820, 140306), (1898, 134540), (1922, 132860), (2015, 126728), (2044, 124930), (2170, 117676), (2263, 112840), (2555, 99944), (2821, 90520), (2920, 87451), (3224, 79205), (3640, 70153), (3796, 67270), (3844, 66430), (4030, 63364), (4088, 62465), (4340, 58838), (4526, 56420), (4745, 53816), (4805, 53144), (5110, 49972), (5642, 45260), (6643, 38440), (6727, 37960), (7592, 33635), (7688, 33215), (8060, 31682), (8680, 29419), (9052, 28210), (9490, 26908), (9610, 26572), (10220, 24986), (11284, 22630), (11315, 22568), (12493, 20440), (13286, 19220), (13454, 18980), (14105, 18104), (15841, 16120)]