1287794560

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{4993}}^1$

素因数の和:5056

約数の個数: 128

約数和(自身を含む): 3423087360

約数和(自身を除く): 2135292800

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 64, 65, 80, 104, 124, 128, 130, 155, 160, 208, 248, 260, 310, 320, 403, 416, 496, 520, 620, 640, 806, 832, 992, 1040, 1240, 1612, 1664, 1984, 2015, 2080, 2480, 3224, 3968, 4030, 4160, 4960, 4993, 6448, 8060, 8320, 9920, 9986, 12896, 16120, 19840, 19972, 24965, 25792, 32240, 39944, 49930, 51584, 64480, 64909, 79888, 99860, 128960, 129818, 154783, 159776, 199720, 257920, 259636, 309566, 319552, 324545, 399440, 519272, 619132, 639104, 649090, 773915, 798880, 1038544, 1238264, 1298180, 1547830, 1597760, 2012179, 2077088, 2476528, 2596360, 3095660, 3195520, 4024358, 4154176, 4953056, 5192720, 6191320, 8048716, 8308352, 9906112, 10060895, 10385440, 12382640, 16097432, 19812224, 20121790, 20770880, 24765280, 32194864, 40243580, 41541760, 49530560, 64389728, 80487160, 99061120, 128779456, 160974320, 257558912, 321948640, 643897280, 1287794560]

約数ペア:

[(1, 1287794560), (2, 643897280), (4, 321948640), (5, 257558912), (8, 160974320), (10, 128779456), (13, 99061120), (16, 80487160), (20, 64389728), (26, 49530560), (31, 41541760), (32, 40243580), (40, 32194864), (52, 24765280), (62, 20770880), (64, 20121790), (65, 19812224), (80, 16097432), (104, 12382640), (124, 10385440), (128, 10060895), (130, 9906112), (155, 8308352), (160, 8048716), (208, 6191320), (248, 5192720), (260, 4953056), (310, 4154176), (320, 4024358), (403, 3195520), (416, 3095660), (496, 2596360), (520, 2476528), (620, 2077088), (640, 2012179), (806, 1597760), (832, 1547830), (992, 1298180), (1040, 1238264), (1240, 1038544), (1612, 798880), (1664, 773915), (1984, 649090), (2015, 639104), (2080, 619132), (2480, 519272), (3224, 399440), (3968, 324545), (4030, 319552), (4160, 309566), (4960, 259636), (4993, 257920), (6448, 199720), (8060, 159776), (8320, 154783), (9920, 129818), (9986, 128960), (12896, 99860), (16120, 79888), (19840, 64909), (19972, 64480), (24965, 51584), (25792, 49930), (32240, 39944)]