80496460

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1$

素因数の和:128

約数の個数: 144

約数和(自身を含む): 203777280

約数和(自身を除く): 123280820

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 29, 31, 37, 44, 55, 58, 62, 74, 110, 116, 121, 124, 145, 148, 155, 185, 220, 242, 290, 310, 319, 341, 370, 407, 484, 580, 605, 620, 638, 682, 740, 814, 899, 1073, 1147, 1210, 1276, 1364, 1595, 1628, 1705, 1798, 2035, 2146, 2294, 2420, 3190, 3410, 3509, 3596, 3751, 4070, 4292, 4477, 4495, 4588, 5365, 5735, 6380, 6820, 7018, 7502, 8140, 8954, 8990, 9889, 10730, 11470, 11803, 12617, 14036, 15004, 17545, 17908, 17980, 18755, 19778, 21460, 22385, 22940, 23606, 25234, 33263, 35090, 37510, 39556, 44770, 47212, 49445, 50468, 59015, 63085, 66526, 70180, 75020, 89540, 98890, 108779, 118030, 126170, 129833, 133052, 138787, 166315, 197780, 217558, 236060, 252340, 259666, 277574, 332630, 365893, 435116, 519332, 543895, 555148, 649165, 665260, 693935, 731786, 1087790, 1298330, 1387870, 1463572, 1829465, 2175580, 2596660, 2775740, 3658930, 4024823, 7317860, 8049646, 16099292, 20124115, 40248230, 80496460]

約数ペア:

[(1, 80496460), (2, 40248230), (4, 20124115), (5, 16099292), (10, 8049646), (11, 7317860), (20, 4024823), (22, 3658930), (29, 2775740), (31, 2596660), (37, 2175580), (44, 1829465), (55, 1463572), (58, 1387870), (62, 1298330), (74, 1087790), (110, 731786), (116, 693935), (121, 665260), (124, 649165), (145, 555148), (148, 543895), (155, 519332), (185, 435116), (220, 365893), (242, 332630), (290, 277574), (310, 259666), (319, 252340), (341, 236060), (370, 217558), (407, 197780), (484, 166315), (580, 138787), (605, 133052), (620, 129833), (638, 126170), (682, 118030), (740, 108779), (814, 98890), (899, 89540), (1073, 75020), (1147, 70180), (1210, 66526), (1276, 63085), (1364, 59015), (1595, 50468), (1628, 49445), (1705, 47212), (1798, 44770), (2035, 39556), (2146, 37510), (2294, 35090), (2420, 33263), (3190, 25234), (3410, 23606), (3509, 22940), (3596, 22385), (3751, 21460), (4070, 19778), (4292, 18755), (4477, 17980), (4495, 17908), (4588, 17545), (5365, 15004), (5735, 14036), (6380, 12617), (6820, 11803), (7018, 11470), (7502, 10730), (8140, 9889), (8954, 8990)]