20165401960

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{751319}}^1$

素因数の和:751402

約数の個数: 64

約数和(自身を含む): 50308387200

約数和(自身を除く): 30142985240

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 61, 88, 110, 122, 220, 244, 305, 440, 488, 610, 671, 1220, 1342, 2440, 2684, 3355, 5368, 6710, 13420, 26840, 751319, 1502638, 3005276, 3756595, 6010552, 7513190, 8264509, 15026380, 16529018, 30052760, 33058036, 41322545, 45830459, 66116072, 82645090, 91660918, 165290180, 183321836, 229152295, 330580360, 366643672, 458304590, 504135049, 916609180, 1008270098, 1833218360, 2016540196, 2520675245, 4033080392, 5041350490, 10082700980, 20165401960]

約数ペア:

[(1, 20165401960), (2, 10082700980), (4, 5041350490), (5, 4033080392), (8, 2520675245), (10, 2016540196), (11, 1833218360), (20, 1008270098), (22, 916609180), (40, 504135049), (44, 458304590), (55, 366643672), (61, 330580360), (88, 229152295), (110, 183321836), (122, 165290180), (220, 91660918), (244, 82645090), (305, 66116072), (440, 45830459), (488, 41322545), (610, 33058036), (671, 30052760), (1220, 16529018), (1342, 15026380), (2440, 8264509), (2684, 7513190), (3355, 6010552), (5368, 3756595), (6710, 3005276), (13420, 1502638), (26840, 751319)]