640339260

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{193}}^1\times {\mathrm{457}}^1$

素因数の和:684

約数の個数: 144

約数和(自身を含む): 1985309088

約数和(自身を除く): 1344969828

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 121, 132, 165, 193, 220, 242, 330, 363, 386, 457, 484, 579, 605, 660, 726, 772, 914, 965, 1158, 1210, 1371, 1452, 1815, 1828, 1930, 2123, 2285, 2316, 2420, 2742, 2895, 3630, 3860, 4246, 4570, 5027, 5484, 5790, 6369, 6855, 7260, 8492, 9140, 10054, 10615, 11580, 12738, 13710, 15081, 20108, 21230, 23353, 25135, 25476, 27420, 30162, 31845, 42460, 46706, 50270, 55297, 60324, 63690, 70059, 75405, 88201, 93412, 100540, 110594, 116765, 127380, 140118, 150810, 165891, 176402, 221188, 233530, 264603, 276485, 280236, 301620, 331782, 350295, 352804, 441005, 467060, 529206, 552970, 663564, 700590, 829455, 882010, 970211, 1058412, 1105940, 1323015, 1401180, 1658910, 1764020, 1940422, 2646030, 2910633, 3317820, 3880844, 4851055, 5292060, 5821266, 9702110, 10672321, 11642532, 14553165, 19404220, 21344642, 29106330, 32016963, 42689284, 53361605, 58212660, 64033926, 106723210, 128067852, 160084815, 213446420, 320169630, 640339260]

約数ペア:

[(1, 640339260), (2, 320169630), (3, 213446420), (4, 160084815), (5, 128067852), (6, 106723210), (10, 64033926), (11, 58212660), (12, 53361605), (15, 42689284), (20, 32016963), (22, 29106330), (30, 21344642), (33, 19404220), (44, 14553165), (55, 11642532), (60, 10672321), (66, 9702110), (110, 5821266), (121, 5292060), (132, 4851055), (165, 3880844), (193, 3317820), (220, 2910633), (242, 2646030), (330, 1940422), (363, 1764020), (386, 1658910), (457, 1401180), (484, 1323015), (579, 1105940), (605, 1058412), (660, 970211), (726, 882010), (772, 829455), (914, 700590), (965, 663564), (1158, 552970), (1210, 529206), (1371, 467060), (1452, 441005), (1815, 352804), (1828, 350295), (1930, 331782), (2123, 301620), (2285, 280236), (2316, 276485), (2420, 264603), (2742, 233530), (2895, 221188), (3630, 176402), (3860, 165891), (4246, 150810), (4570, 140118), (5027, 127380), (5484, 116765), (5790, 110594), (6369, 100540), (6855, 93412), (7260, 88201), (8492, 75405), (9140, 70059), (10054, 63690), (10615, 60324), (11580, 55297), (12738, 50270), (13710, 46706), (15081, 42460), (20108, 31845), (21230, 30162), (23353, 27420), (25135, 25476)]