19749492820

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{181}}^1\times {\mathrm{1303}}^1$

素因数の和:1625

約数の個数: 96

約数和(自身を含む): 43060792320

約数和(自身を除く): 23311299500

約数列:

[1, 2, 4, 5, 10, 20, 53, 79, 106, 158, 181, 212, 265, 316, 362, 395, 530, 724, 790, 905, 1060, 1303, 1580, 1810, 2606, 3620, 4187, 5212, 6515, 8374, 9593, 13030, 14299, 16748, 19186, 20935, 26060, 28598, 38372, 41870, 47965, 57196, 69059, 71495, 83740, 95930, 102937, 138118, 142990, 191860, 205874, 235843, 276236, 285980, 345295, 411748, 471686, 514685, 690590, 757847, 943372, 1029370, 1179215, 1381180, 1515694, 2058740, 2358430, 3031388, 3789235, 4716860, 5455661, 7578470, 10911322, 12499679, 15156940, 18631597, 21822644, 24999358, 27278305, 37263194, 49998716, 54556610, 62498395, 74526388, 93157985, 109113220, 124996790, 186315970, 249993580, 372631940, 987474641, 1974949282, 3949898564, 4937373205, 9874746410, 19749492820]

約数ペア:

[(1, 19749492820), (2, 9874746410), (4, 4937373205), (5, 3949898564), (10, 1974949282), (20, 987474641), (53, 372631940), (79, 249993580), (106, 186315970), (158, 124996790), (181, 109113220), (212, 93157985), (265, 74526388), (316, 62498395), (362, 54556610), (395, 49998716), (530, 37263194), (724, 27278305), (790, 24999358), (905, 21822644), (1060, 18631597), (1303, 15156940), (1580, 12499679), (1810, 10911322), (2606, 7578470), (3620, 5455661), (4187, 4716860), (5212, 3789235), (6515, 3031388), (8374, 2358430), (9593, 2058740), (13030, 1515694), (14299, 1381180), (16748, 1179215), (19186, 1029370), (20935, 943372), (26060, 757847), (28598, 690590), (38372, 514685), (41870, 471686), (47965, 411748), (57196, 345295), (69059, 285980), (71495, 276236), (83740, 235843), (95930, 205874), (102937, 191860), (138118, 142990)]