1291265920

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{6703}}^1$

素因数の和:6772

約数の個数: 128

約数和(自身を含む): 3610506240

約数和(自身を除く): 2319240320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 43, 56, 64, 70, 80, 86, 112, 128, 140, 160, 172, 215, 224, 280, 301, 320, 344, 430, 448, 560, 602, 640, 688, 860, 896, 1120, 1204, 1376, 1505, 1720, 2240, 2408, 2752, 3010, 3440, 4480, 4816, 5504, 6020, 6703, 6880, 9632, 12040, 13406, 13760, 19264, 24080, 26812, 27520, 33515, 38528, 46921, 48160, 53624, 67030, 93842, 96320, 107248, 134060, 187684, 192640, 214496, 234605, 268120, 288229, 375368, 428992, 469210, 536240, 576458, 750736, 857984, 938420, 1072480, 1152916, 1441145, 1501472, 1876840, 2017603, 2144960, 2305832, 2882290, 3002944, 3753680, 4035206, 4289920, 4611664, 5764580, 6005888, 7507360, 8070412, 9223328, 10088015, 11529160, 15014720, 16140824, 18446656, 20176030, 23058320, 30029440, 32281648, 36893312, 40352060, 46116640, 64563296, 80704120, 92233280, 129126592, 161408240, 184466560, 258253184, 322816480, 645632960, 1291265920]

約数ペア:

[(1, 1291265920), (2, 645632960), (4, 322816480), (5, 258253184), (7, 184466560), (8, 161408240), (10, 129126592), (14, 92233280), (16, 80704120), (20, 64563296), (28, 46116640), (32, 40352060), (35, 36893312), (40, 32281648), (43, 30029440), (56, 23058320), (64, 20176030), (70, 18446656), (80, 16140824), (86, 15014720), (112, 11529160), (128, 10088015), (140, 9223328), (160, 8070412), (172, 7507360), (215, 6005888), (224, 5764580), (280, 4611664), (301, 4289920), (320, 4035206), (344, 3753680), (430, 3002944), (448, 2882290), (560, 2305832), (602, 2144960), (640, 2017603), (688, 1876840), (860, 1501472), (896, 1441145), (1120, 1152916), (1204, 1072480), (1376, 938420), (1505, 857984), (1720, 750736), (2240, 576458), (2408, 536240), (2752, 469210), (3010, 428992), (3440, 375368), (4480, 288229), (4816, 268120), (5504, 234605), (6020, 214496), (6703, 192640), (6880, 187684), (9632, 134060), (12040, 107248), (13406, 96320), (13760, 93842), (19264, 67030), (24080, 53624), (26812, 48160), (27520, 46921), (33515, 38528)]