180817000

素因数分解:

$2^3\times 5^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1987}}^1$

素因数の和:2028

約数の個数: 128

約数和(自身を含む): 521015040

約数和(自身を除く): 340198040

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 25, 26, 28, 35, 40, 50, 52, 56, 65, 70, 91, 100, 104, 125, 130, 140, 175, 182, 200, 250, 260, 280, 325, 350, 364, 455, 500, 520, 650, 700, 728, 875, 910, 1000, 1300, 1400, 1625, 1750, 1820, 1987, 2275, 2600, 3250, 3500, 3640, 3974, 4550, 6500, 7000, 7948, 9100, 9935, 11375, 13000, 13909, 15896, 18200, 19870, 22750, 25831, 27818, 39740, 45500, 49675, 51662, 55636, 69545, 79480, 91000, 99350, 103324, 111272, 129155, 139090, 180817, 198700, 206648, 248375, 258310, 278180, 347725, 361634, 397400, 496750, 516620, 556360, 645775, 695450, 723268, 904085, 993500, 1033240, 1291550, 1390900, 1446536, 1738625, 1808170, 1987000, 2583100, 2781800, 3228875, 3477250, 3616340, 4520425, 5166200, 6457750, 6954500, 7232680, 9040850, 12915500, 13909000, 18081700, 22602125, 25831000, 36163400, 45204250, 90408500, 180817000]

約数ペア:

[(1, 180817000), (2, 90408500), (4, 45204250), (5, 36163400), (7, 25831000), (8, 22602125), (10, 18081700), (13, 13909000), (14, 12915500), (20, 9040850), (25, 7232680), (26, 6954500), (28, 6457750), (35, 5166200), (40, 4520425), (50, 3616340), (52, 3477250), (56, 3228875), (65, 2781800), (70, 2583100), (91, 1987000), (100, 1808170), (104, 1738625), (125, 1446536), (130, 1390900), (140, 1291550), (175, 1033240), (182, 993500), (200, 904085), (250, 723268), (260, 695450), (280, 645775), (325, 556360), (350, 516620), (364, 496750), (455, 397400), (500, 361634), (520, 347725), (650, 278180), (700, 258310), (728, 248375), (875, 206648), (910, 198700), (1000, 180817), (1300, 139090), (1400, 129155), (1625, 111272), (1750, 103324), (1820, 99350), (1987, 91000), (2275, 79480), (2600, 69545), (3250, 55636), (3500, 51662), (3640, 49675), (3974, 45500), (4550, 39740), (6500, 27818), (7000, 25831), (7948, 22750), (9100, 19870), (9935, 18200), (11375, 15896), (13000, 13909)]