858768820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{491}}^1$

素因数の和:582

約数の個数: 144

約数和(自身を含む): 2298167424

約数和(自身を除く): 1439398604

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 31, 35, 52, 62, 65, 70, 91, 124, 130, 140, 155, 182, 217, 260, 310, 364, 403, 434, 455, 491, 620, 806, 868, 910, 961, 982, 1085, 1612, 1820, 1922, 1964, 2015, 2170, 2455, 2821, 3437, 3844, 4030, 4340, 4805, 4910, 5642, 6383, 6727, 6874, 8060, 9610, 9820, 11284, 12493, 12766, 13454, 13748, 14105, 15221, 17185, 19220, 24986, 25532, 26908, 28210, 30442, 31915, 33635, 34370, 44681, 49972, 56420, 60884, 62465, 63830, 67270, 68740, 76105, 87451, 89362, 106547, 124930, 127660, 134540, 152210, 174902, 178724, 197873, 213094, 223405, 249860, 304420, 349804, 395746, 426188, 437255, 446810, 471851, 532735, 791492, 874510, 893620, 943702, 989365, 1065470, 1385111, 1749020, 1887404, 1978730, 2130940, 2359255, 2770222, 3302957, 3957460, 4718510, 5540444, 6134063, 6605914, 6925555, 9437020, 12268126, 13211828, 13851110, 16514785, 24536252, 27702220, 30670315, 33029570, 42938441, 61340630, 66059140, 85876882, 122681260, 171753764, 214692205, 429384410, 858768820]

約数ペア:

[(1, 858768820), (2, 429384410), (4, 214692205), (5, 171753764), (7, 122681260), (10, 85876882), (13, 66059140), (14, 61340630), (20, 42938441), (26, 33029570), (28, 30670315), (31, 27702220), (35, 24536252), (52, 16514785), (62, 13851110), (65, 13211828), (70, 12268126), (91, 9437020), (124, 6925555), (130, 6605914), (140, 6134063), (155, 5540444), (182, 4718510), (217, 3957460), (260, 3302957), (310, 2770222), (364, 2359255), (403, 2130940), (434, 1978730), (455, 1887404), (491, 1749020), (620, 1385111), (806, 1065470), (868, 989365), (910, 943702), (961, 893620), (982, 874510), (1085, 791492), (1612, 532735), (1820, 471851), (1922, 446810), (1964, 437255), (2015, 426188), (2170, 395746), (2455, 349804), (2821, 304420), (3437, 249860), (3844, 223405), (4030, 213094), (4340, 197873), (4805, 178724), (4910, 174902), (5642, 152210), (6383, 134540), (6727, 127660), (6874, 124930), (8060, 106547), (9610, 89362), (9820, 87451), (11284, 76105), (12493, 68740), (12766, 67270), (13454, 63830), (13748, 62465), (14105, 60884), (15221, 56420), (17185, 49972), (19220, 44681), (24986, 34370), (25532, 33635), (26908, 31915), (28210, 30442)]