280121240

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{17}}^1\times {\mathrm{1201}}^1$

素因数の和:1250

約数の個数: 128

約数和(自身を含む): 778896000

約数和(自身を除く): 498774760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 34, 35, 40, 49, 56, 68, 70, 85, 98, 119, 136, 140, 170, 196, 238, 245, 280, 340, 343, 392, 476, 490, 595, 680, 686, 833, 952, 980, 1190, 1201, 1372, 1666, 1715, 1960, 2380, 2402, 2744, 3332, 3430, 4165, 4760, 4804, 5831, 6005, 6664, 6860, 8330, 8407, 9608, 11662, 12010, 13720, 16660, 16814, 20417, 23324, 24020, 29155, 33320, 33628, 40834, 42035, 46648, 48040, 58310, 58849, 67256, 81668, 84070, 102085, 116620, 117698, 142919, 163336, 168140, 204170, 233240, 235396, 285838, 294245, 336280, 408340, 411943, 470792, 571676, 588490, 714595, 816680, 823886, 1000433, 1143352, 1176980, 1429190, 1647772, 2000866, 2059715, 2353960, 2858380, 3295544, 4001732, 4119430, 5002165, 5716760, 7003031, 8003464, 8238860, 10004330, 14006062, 16477720, 20008660, 28012124, 35015155, 40017320, 56024248, 70030310, 140060620, 280121240]

約数ペア:

[(1, 280121240), (2, 140060620), (4, 70030310), (5, 56024248), (7, 40017320), (8, 35015155), (10, 28012124), (14, 20008660), (17, 16477720), (20, 14006062), (28, 10004330), (34, 8238860), (35, 8003464), (40, 7003031), (49, 5716760), (56, 5002165), (68, 4119430), (70, 4001732), (85, 3295544), (98, 2858380), (119, 2353960), (136, 2059715), (140, 2000866), (170, 1647772), (196, 1429190), (238, 1176980), (245, 1143352), (280, 1000433), (340, 823886), (343, 816680), (392, 714595), (476, 588490), (490, 571676), (595, 470792), (680, 411943), (686, 408340), (833, 336280), (952, 294245), (980, 285838), (1190, 235396), (1201, 233240), (1372, 204170), (1666, 168140), (1715, 163336), (1960, 142919), (2380, 117698), (2402, 116620), (2744, 102085), (3332, 84070), (3430, 81668), (4165, 67256), (4760, 58849), (4804, 58310), (5831, 48040), (6005, 46648), (6664, 42035), (6860, 40834), (8330, 33628), (8407, 33320), (9608, 29155), (11662, 24020), (12010, 23324), (13720, 20417), (16660, 16814)]