278739240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{907}}^1$

素因数の和:1131

約数の個数: 128

約数和(自身を含む): 906111360

約数和(自身を除く): 627372120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 197, 260, 312, 390, 394, 520, 591, 780, 788, 907, 985, 1182, 1560, 1576, 1814, 1970, 2364, 2561, 2721, 2955, 3628, 3940, 4535, 4728, 5122, 5442, 5910, 7256, 7683, 7880, 9070, 10244, 10884, 11791, 11820, 12805, 13605, 15366, 18140, 20488, 21768, 23582, 23640, 25610, 27210, 30732, 35373, 36280, 38415, 47164, 51220, 54420, 58955, 61464, 70746, 76830, 94328, 102440, 108840, 117910, 141492, 153660, 176865, 178679, 235820, 282984, 307320, 353730, 357358, 471640, 536037, 707460, 714716, 893395, 1072074, 1414920, 1429432, 1786790, 2144148, 2322827, 2680185, 3573580, 4288296, 4645654, 5360370, 6968481, 7147160, 9291308, 10720740, 11614135, 13936962, 18582616, 21441480, 23228270, 27873924, 34842405, 46456540, 55747848, 69684810, 92913080, 139369620, 278739240]

約数ペア:

[(1, 278739240), (2, 139369620), (3, 92913080), (4, 69684810), (5, 55747848), (6, 46456540), (8, 34842405), (10, 27873924), (12, 23228270), (13, 21441480), (15, 18582616), (20, 13936962), (24, 11614135), (26, 10720740), (30, 9291308), (39, 7147160), (40, 6968481), (52, 5360370), (60, 4645654), (65, 4288296), (78, 3573580), (104, 2680185), (120, 2322827), (130, 2144148), (156, 1786790), (195, 1429432), (197, 1414920), (260, 1072074), (312, 893395), (390, 714716), (394, 707460), (520, 536037), (591, 471640), (780, 357358), (788, 353730), (907, 307320), (985, 282984), (1182, 235820), (1560, 178679), (1576, 176865), (1814, 153660), (1970, 141492), (2364, 117910), (2561, 108840), (2721, 102440), (2955, 94328), (3628, 76830), (3940, 70746), (4535, 61464), (4728, 58955), (5122, 54420), (5442, 51220), (5910, 47164), (7256, 38415), (7683, 36280), (7880, 35373), (9070, 30732), (10244, 27210), (10884, 25610), (11791, 23640), (11820, 23582), (12805, 21768), (13605, 20488), (15366, 18140)]