20656416

素因数分解:

$2^5\times 3^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{631}}^1$

素因数の和:686

約数の個数: 96

約数和(自身を含む): 61157376

約数和(自身を除く): 40500960

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 31, 32, 33, 44, 48, 62, 66, 88, 93, 96, 124, 132, 176, 186, 248, 264, 341, 352, 372, 496, 528, 631, 682, 744, 992, 1023, 1056, 1262, 1364, 1488, 1893, 2046, 2524, 2728, 2976, 3786, 4092, 5048, 5456, 6941, 7572, 8184, 10096, 10912, 13882, 15144, 16368, 19561, 20192, 20823, 27764, 30288, 32736, 39122, 41646, 55528, 58683, 60576, 78244, 83292, 111056, 117366, 156488, 166584, 215171, 222112, 234732, 312976, 333168, 430342, 469464, 625952, 645513, 666336, 860684, 938928, 1291026, 1721368, 1877856, 2582052, 3442736, 5164104, 6885472, 10328208, 20656416]

約数ペア:

[(1, 20656416), (2, 10328208), (3, 6885472), (4, 5164104), (6, 3442736), (8, 2582052), (11, 1877856), (12, 1721368), (16, 1291026), (22, 938928), (24, 860684), (31, 666336), (32, 645513), (33, 625952), (44, 469464), (48, 430342), (62, 333168), (66, 312976), (88, 234732), (93, 222112), (96, 215171), (124, 166584), (132, 156488), (176, 117366), (186, 111056), (248, 83292), (264, 78244), (341, 60576), (352, 58683), (372, 55528), (496, 41646), (528, 39122), (631, 32736), (682, 30288), (744, 27764), (992, 20823), (1023, 20192), (1056, 19561), (1262, 16368), (1364, 15144), (1488, 13882), (1893, 10912), (2046, 10096), (2524, 8184), (2728, 7572), (2976, 6941), (3786, 5456), (4092, 5048)]