20921641760

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{311}}^1\times {\mathrm{22129}}^1$

素因数の和:22474

約数の個数: 96

約数和(自身を含む): 52198473600

約数和(自身を除く): 31276831840

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 311, 380, 608, 622, 760, 1244, 1520, 1555, 2488, 3040, 3110, 4976, 5909, 6220, 9952, 11818, 12440, 22129, 23636, 24880, 29545, 44258, 47272, 49760, 59090, 88516, 94544, 110645, 118180, 177032, 189088, 221290, 236360, 354064, 420451, 442580, 472720, 708128, 840902, 885160, 945440, 1681804, 1770320, 2102255, 3363608, 3540640, 4204510, 6727216, 6882119, 8409020, 13454432, 13764238, 16818040, 27528476, 33636080, 34410595, 55056952, 67272160, 68821190, 110113904, 130760261, 137642380, 220227808, 261520522, 275284760, 523041044, 550569520, 653801305, 1046082088, 1101139040, 1307602610, 2092164176, 2615205220, 4184328352, 5230410440, 10460820880, 20921641760]

約数ペア:

[(1, 20921641760), (2, 10460820880), (4, 5230410440), (5, 4184328352), (8, 2615205220), (10, 2092164176), (16, 1307602610), (19, 1101139040), (20, 1046082088), (32, 653801305), (38, 550569520), (40, 523041044), (76, 275284760), (80, 261520522), (95, 220227808), (152, 137642380), (160, 130760261), (190, 110113904), (304, 68821190), (311, 67272160), (380, 55056952), (608, 34410595), (622, 33636080), (760, 27528476), (1244, 16818040), (1520, 13764238), (1555, 13454432), (2488, 8409020), (3040, 6882119), (3110, 6727216), (4976, 4204510), (5909, 3540640), (6220, 3363608), (9952, 2102255), (11818, 1770320), (12440, 1681804), (22129, 945440), (23636, 885160), (24880, 840902), (29545, 708128), (44258, 472720), (47272, 442580), (49760, 420451), (59090, 354064), (88516, 236360), (94544, 221290), (110645, 189088), (118180, 177032)]