20007768508

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{743}}^1\times {\mathrm{2551}}^1$

素因数の和:3347

約数の個数: 96

約数和(自身を含む): 44657141760

約数和(自身を除く): 24649373252

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 29, 52, 58, 91, 116, 182, 203, 364, 377, 406, 743, 754, 812, 1486, 1508, 2551, 2639, 2972, 5102, 5201, 5278, 9659, 10204, 10402, 10556, 17857, 19318, 20804, 21547, 33163, 35714, 38636, 43094, 66326, 67613, 71428, 73979, 86188, 132652, 135226, 147958, 150829, 232141, 270452, 280111, 295916, 301658, 464282, 517853, 560222, 603316, 928564, 961727, 1035706, 1120444, 1895393, 1923454, 1960777, 2071412, 3790786, 3846908, 3921554, 6732089, 7581572, 7843108, 13267751, 13464178, 24640109, 26535502, 26928356, 49280218, 53071004, 54966397, 98560436, 109932794, 172480763, 219865588, 344961526, 384764779, 689923052, 714563161, 769529558, 1429126322, 1539059116, 2858252644, 5001942127, 10003884254, 20007768508]

約数ペア:

[(1, 20007768508), (2, 10003884254), (4, 5001942127), (7, 2858252644), (13, 1539059116), (14, 1429126322), (26, 769529558), (28, 714563161), (29, 689923052), (52, 384764779), (58, 344961526), (91, 219865588), (116, 172480763), (182, 109932794), (203, 98560436), (364, 54966397), (377, 53071004), (406, 49280218), (743, 26928356), (754, 26535502), (812, 24640109), (1486, 13464178), (1508, 13267751), (2551, 7843108), (2639, 7581572), (2972, 6732089), (5102, 3921554), (5201, 3846908), (5278, 3790786), (9659, 2071412), (10204, 1960777), (10402, 1923454), (10556, 1895393), (17857, 1120444), (19318, 1035706), (20804, 961727), (21547, 928564), (33163, 603316), (35714, 560222), (38636, 517853), (43094, 464282), (66326, 301658), (67613, 295916), (71428, 280111), (73979, 270452), (86188, 232141), (132652, 150829), (135226, 147958)]