280590960

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{647}}^1$

素因数の和:815

約数の個数: 160

約数和(自身を含む): 944939520

約数和(自身を除く): 664348560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 139, 156, 195, 208, 240, 260, 278, 312, 390, 417, 520, 556, 624, 647, 695, 780, 834, 1040, 1112, 1294, 1390, 1560, 1668, 1807, 1941, 2085, 2224, 2588, 2780, 3120, 3235, 3336, 3614, 3882, 4170, 5176, 5421, 5560, 6470, 6672, 7228, 7764, 8340, 8411, 9035, 9705, 10352, 10842, 11120, 12940, 14456, 15528, 16680, 16822, 18070, 19410, 21684, 25233, 25880, 27105, 28912, 31056, 33360, 33644, 36140, 38820, 42055, 43368, 50466, 51760, 54210, 67288, 72280, 77640, 84110, 86736, 89933, 100932, 108420, 126165, 134576, 144560, 155280, 168220, 179866, 201864, 216840, 252330, 269799, 336440, 359732, 403728, 433680, 449665, 504660, 539598, 672880, 719464, 899330, 1009320, 1079196, 1169129, 1348995, 1438928, 1798660, 2018640, 2158392, 2338258, 2697990, 3507387, 3597320, 4316784, 4676516, 5395980, 5845645, 7014774, 7194640, 9353032, 10791960, 11691290, 14029548, 17536935, 18706064, 21583920, 23382580, 28059096, 35073870, 46765160, 56118192, 70147740, 93530320, 140295480, 280590960]

約数ペア:

[(1, 280590960), (2, 140295480), (3, 93530320), (4, 70147740), (5, 56118192), (6, 46765160), (8, 35073870), (10, 28059096), (12, 23382580), (13, 21583920), (15, 18706064), (16, 17536935), (20, 14029548), (24, 11691290), (26, 10791960), (30, 9353032), (39, 7194640), (40, 7014774), (48, 5845645), (52, 5395980), (60, 4676516), (65, 4316784), (78, 3597320), (80, 3507387), (104, 2697990), (120, 2338258), (130, 2158392), (139, 2018640), (156, 1798660), (195, 1438928), (208, 1348995), (240, 1169129), (260, 1079196), (278, 1009320), (312, 899330), (390, 719464), (417, 672880), (520, 539598), (556, 504660), (624, 449665), (647, 433680), (695, 403728), (780, 359732), (834, 336440), (1040, 269799), (1112, 252330), (1294, 216840), (1390, 201864), (1560, 179866), (1668, 168220), (1807, 155280), (1941, 144560), (2085, 134576), (2224, 126165), (2588, 108420), (2780, 100932), (3120, 89933), (3235, 86736), (3336, 84110), (3614, 77640), (3882, 72280), (4170, 67288), (5176, 54210), (5421, 51760), (5560, 50466), (6470, 43368), (6672, 42055), (7228, 38820), (7764, 36140), (8340, 33644), (8411, 33360), (9035, 31056), (9705, 28912), (10352, 27105), (10842, 25880), (11120, 25233), (12940, 21684), (14456, 19410), (15528, 18070), (16680, 16822)]