20255508

素因数分解:

$2^2\times 3^5\times 7^1\times {\mathrm{13}}^1\times {\mathrm{229}}^1$

素因数の和:268

約数の個数: 144

約数和(自身を含む): 65636480

約数和(自身を除く): 45380972

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 18, 21, 26, 27, 28, 36, 39, 42, 52, 54, 63, 78, 81, 84, 91, 108, 117, 126, 156, 162, 182, 189, 229, 234, 243, 252, 273, 324, 351, 364, 378, 458, 468, 486, 546, 567, 687, 702, 756, 819, 916, 972, 1053, 1092, 1134, 1374, 1404, 1603, 1638, 1701, 2061, 2106, 2268, 2457, 2748, 2977, 3159, 3206, 3276, 3402, 4122, 4212, 4809, 4914, 5954, 6183, 6318, 6412, 6804, 7371, 8244, 8931, 9618, 9828, 11908, 12366, 12636, 14427, 14742, 17862, 18549, 19236, 20839, 22113, 24732, 26793, 28854, 29484, 35724, 37098, 41678, 43281, 44226, 53586, 55647, 57708, 62517, 74196, 80379, 83356, 86562, 88452, 107172, 111294, 125034, 129843, 160758, 173124, 187551, 222588, 241137, 250068, 259686, 321516, 375102, 389529, 482274, 519372, 562653, 723411, 750204, 779058, 964548, 1125306, 1446822, 1558116, 1687959, 2250612, 2893644, 3375918, 5063877, 6751836, 10127754, 20255508]

約数ペア:

[(1, 20255508), (2, 10127754), (3, 6751836), (4, 5063877), (6, 3375918), (7, 2893644), (9, 2250612), (12, 1687959), (13, 1558116), (14, 1446822), (18, 1125306), (21, 964548), (26, 779058), (27, 750204), (28, 723411), (36, 562653), (39, 519372), (42, 482274), (52, 389529), (54, 375102), (63, 321516), (78, 259686), (81, 250068), (84, 241137), (91, 222588), (108, 187551), (117, 173124), (126, 160758), (156, 129843), (162, 125034), (182, 111294), (189, 107172), (229, 88452), (234, 86562), (243, 83356), (252, 80379), (273, 74196), (324, 62517), (351, 57708), (364, 55647), (378, 53586), (458, 44226), (468, 43281), (486, 41678), (546, 37098), (567, 35724), (687, 29484), (702, 28854), (756, 26793), (819, 24732), (916, 22113), (972, 20839), (1053, 19236), (1092, 18549), (1134, 17862), (1374, 14742), (1404, 14427), (1603, 12636), (1638, 12366), (1701, 11908), (2061, 9828), (2106, 9618), (2268, 8931), (2457, 8244), (2748, 7371), (2977, 6804), (3159, 6412), (3206, 6318), (3276, 6183), (3402, 5954), (4122, 4914), (4212, 4809)]