19887752060

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{461}}^1\times {\mathrm{1249}}^1$

素因数の和:1887

約数の個数: 96

約数和(自身を含む): 45987480000

約数和(自身を除く): 26099727940

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 157, 220, 314, 461, 628, 785, 922, 1249, 1570, 1727, 1844, 2305, 2498, 3140, 3454, 4610, 4996, 5071, 6245, 6908, 8635, 9220, 10142, 12490, 13739, 17270, 20284, 24980, 25355, 27478, 34540, 50710, 54956, 68695, 72377, 101420, 137390, 144754, 196093, 274780, 289508, 361885, 392186, 575789, 723770, 784372, 796147, 980465, 1151578, 1447540, 1592294, 1960930, 2157023, 2303156, 2878945, 3184588, 3921860, 3980735, 4314046, 5757890, 6333679, 7961470, 8628092, 10785115, 11515780, 12667358, 15922940, 21570230, 25334716, 31668395, 43140460, 63336790, 90398873, 126673580, 180797746, 361595492, 451994365, 903988730, 994387603, 1807977460, 1988775206, 3977550412, 4971938015, 9943876030, 19887752060]

約数ペア:

[(1, 19887752060), (2, 9943876030), (4, 4971938015), (5, 3977550412), (10, 1988775206), (11, 1807977460), (20, 994387603), (22, 903988730), (44, 451994365), (55, 361595492), (110, 180797746), (157, 126673580), (220, 90398873), (314, 63336790), (461, 43140460), (628, 31668395), (785, 25334716), (922, 21570230), (1249, 15922940), (1570, 12667358), (1727, 11515780), (1844, 10785115), (2305, 8628092), (2498, 7961470), (3140, 6333679), (3454, 5757890), (4610, 4314046), (4996, 3980735), (5071, 3921860), (6245, 3184588), (6908, 2878945), (8635, 2303156), (9220, 2157023), (10142, 1960930), (12490, 1592294), (13739, 1447540), (17270, 1151578), (20284, 980465), (24980, 796147), (25355, 784372), (27478, 723770), (34540, 575789), (50710, 392186), (54956, 361885), (68695, 289508), (72377, 274780), (101420, 196093), (137390, 144754)]