20091780

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{1283}}^1$

素因数の和:1330

約数の個数: 96

約数和(自身を含む): 64713600

約数和(自身を除く): 44621820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 29, 30, 36, 45, 54, 58, 60, 87, 90, 108, 116, 135, 145, 174, 180, 261, 270, 290, 348, 435, 522, 540, 580, 783, 870, 1044, 1283, 1305, 1566, 1740, 2566, 2610, 3132, 3849, 3915, 5132, 5220, 6415, 7698, 7830, 11547, 12830, 15396, 15660, 19245, 23094, 25660, 34641, 37207, 38490, 46188, 57735, 69282, 74414, 76980, 111621, 115470, 138564, 148828, 173205, 186035, 223242, 230940, 334863, 346410, 372070, 446484, 558105, 669726, 692820, 744140, 1004589, 1116210, 1339452, 1674315, 2009178, 2232420, 3348630, 4018356, 5022945, 6697260, 10045890, 20091780]

約数ペア:

[(1, 20091780), (2, 10045890), (3, 6697260), (4, 5022945), (5, 4018356), (6, 3348630), (9, 2232420), (10, 2009178), (12, 1674315), (15, 1339452), (18, 1116210), (20, 1004589), (27, 744140), (29, 692820), (30, 669726), (36, 558105), (45, 446484), (54, 372070), (58, 346410), (60, 334863), (87, 230940), (90, 223242), (108, 186035), (116, 173205), (135, 148828), (145, 138564), (174, 115470), (180, 111621), (261, 76980), (270, 74414), (290, 69282), (348, 57735), (435, 46188), (522, 38490), (540, 37207), (580, 34641), (783, 25660), (870, 23094), (1044, 19245), (1283, 15660), (1305, 15396), (1566, 12830), (1740, 11547), (2566, 7830), (2610, 7698), (3132, 6415), (3849, 5220), (3915, 5132)]