257568720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{1609}}^1$

素因数の和:1677

約数の個数: 160

約数和(自身を含む): 862444800

約数和(自身を除く): 604876080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 29, 30, 40, 46, 48, 58, 60, 69, 80, 87, 92, 115, 116, 120, 138, 145, 174, 184, 230, 232, 240, 276, 290, 345, 348, 368, 435, 460, 464, 552, 580, 667, 690, 696, 870, 920, 1104, 1160, 1334, 1380, 1392, 1609, 1740, 1840, 2001, 2320, 2668, 2760, 3218, 3335, 3480, 4002, 4827, 5336, 5520, 6436, 6670, 6960, 8004, 8045, 9654, 10005, 10672, 12872, 13340, 16008, 16090, 19308, 20010, 24135, 25744, 26680, 32016, 32180, 37007, 38616, 40020, 46661, 48270, 53360, 64360, 74014, 77232, 80040, 93322, 96540, 111021, 128720, 139983, 148028, 160080, 185035, 186644, 193080, 222042, 233305, 279966, 296056, 370070, 373288, 386160, 444084, 466610, 555105, 559932, 592112, 699915, 740140, 746576, 888168, 933220, 1073203, 1110210, 1119864, 1399830, 1480280, 1776336, 1866440, 2146406, 2220420, 2239728, 2799660, 2960560, 3219609, 3732880, 4292812, 4440840, 5366015, 5599320, 6439218, 8585624, 8881680, 10732030, 11198640, 12878436, 16098045, 17171248, 21464060, 25756872, 32196090, 42928120, 51513744, 64392180, 85856240, 128784360, 257568720]

約数ペア:

[(1, 257568720), (2, 128784360), (3, 85856240), (4, 64392180), (5, 51513744), (6, 42928120), (8, 32196090), (10, 25756872), (12, 21464060), (15, 17171248), (16, 16098045), (20, 12878436), (23, 11198640), (24, 10732030), (29, 8881680), (30, 8585624), (40, 6439218), (46, 5599320), (48, 5366015), (58, 4440840), (60, 4292812), (69, 3732880), (80, 3219609), (87, 2960560), (92, 2799660), (115, 2239728), (116, 2220420), (120, 2146406), (138, 1866440), (145, 1776336), (174, 1480280), (184, 1399830), (230, 1119864), (232, 1110210), (240, 1073203), (276, 933220), (290, 888168), (345, 746576), (348, 740140), (368, 699915), (435, 592112), (460, 559932), (464, 555105), (552, 466610), (580, 444084), (667, 386160), (690, 373288), (696, 370070), (870, 296056), (920, 279966), (1104, 233305), (1160, 222042), (1334, 193080), (1380, 186644), (1392, 185035), (1609, 160080), (1740, 148028), (1840, 139983), (2001, 128720), (2320, 111021), (2668, 96540), (2760, 93322), (3218, 80040), (3335, 77232), (3480, 74014), (4002, 64360), (4827, 53360), (5336, 48270), (5520, 46661), (6436, 40020), (6670, 38616), (6960, 37007), (8004, 32180), (8045, 32016), (9654, 26680), (10005, 25744), (10672, 24135), (12872, 20010), (13340, 19308), (16008, 16090)]