256799280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{557}}^1$

素因数の和:703

約数の個数: 160

約数和(自身を含む): 851891904

約数和(自身を除く): 595092624

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 34, 40, 48, 51, 60, 68, 80, 85, 102, 113, 120, 136, 170, 204, 226, 240, 255, 272, 339, 340, 408, 452, 510, 557, 565, 678, 680, 816, 904, 1020, 1114, 1130, 1356, 1360, 1671, 1695, 1808, 1921, 2040, 2228, 2260, 2712, 2785, 3342, 3390, 3842, 4080, 4456, 4520, 5424, 5570, 5763, 6684, 6780, 7684, 8355, 8912, 9040, 9469, 9605, 11140, 11526, 13368, 13560, 15368, 16710, 18938, 19210, 22280, 23052, 26736, 27120, 28407, 28815, 30736, 33420, 37876, 38420, 44560, 46104, 47345, 56814, 57630, 62941, 66840, 75752, 76840, 92208, 94690, 113628, 115260, 125882, 133680, 142035, 151504, 153680, 188823, 189380, 227256, 230520, 251764, 284070, 314705, 377646, 378760, 454512, 461040, 503528, 568140, 629410, 755292, 757520, 944115, 1007056, 1069997, 1136280, 1258820, 1510584, 1888230, 2139994, 2272560, 2517640, 3021168, 3209991, 3776460, 4279988, 5035280, 5349985, 6419982, 7552920, 8559976, 10699970, 12839964, 15105840, 16049955, 17119952, 21399940, 25679928, 32099910, 42799880, 51359856, 64199820, 85599760, 128399640, 256799280]

約数ペア:

[(1, 256799280), (2, 128399640), (3, 85599760), (4, 64199820), (5, 51359856), (6, 42799880), (8, 32099910), (10, 25679928), (12, 21399940), (15, 17119952), (16, 16049955), (17, 15105840), (20, 12839964), (24, 10699970), (30, 8559976), (34, 7552920), (40, 6419982), (48, 5349985), (51, 5035280), (60, 4279988), (68, 3776460), (80, 3209991), (85, 3021168), (102, 2517640), (113, 2272560), (120, 2139994), (136, 1888230), (170, 1510584), (204, 1258820), (226, 1136280), (240, 1069997), (255, 1007056), (272, 944115), (339, 757520), (340, 755292), (408, 629410), (452, 568140), (510, 503528), (557, 461040), (565, 454512), (678, 378760), (680, 377646), (816, 314705), (904, 284070), (1020, 251764), (1114, 230520), (1130, 227256), (1356, 189380), (1360, 188823), (1671, 153680), (1695, 151504), (1808, 142035), (1921, 133680), (2040, 125882), (2228, 115260), (2260, 113628), (2712, 94690), (2785, 92208), (3342, 76840), (3390, 75752), (3842, 66840), (4080, 62941), (4456, 57630), (4520, 56814), (5424, 47345), (5570, 46104), (5763, 44560), (6684, 38420), (6780, 37876), (7684, 33420), (8355, 30736), (8912, 28815), (9040, 28407), (9469, 27120), (9605, 26736), (11140, 23052), (11526, 22280), (13368, 19210), (13560, 18938), (15368, 16710)]