40780980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{3191}}^1$

素因数の和:3277

約数の個数: 72

約数和(自身を含む): 125483904

約数和(自身を除く): 84702924

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 71, 90, 142, 180, 213, 284, 355, 426, 639, 710, 852, 1065, 1278, 1420, 2130, 2556, 3191, 3195, 4260, 6382, 6390, 9573, 12764, 12780, 15955, 19146, 28719, 31910, 38292, 47865, 57438, 63820, 95730, 114876, 143595, 191460, 226561, 287190, 453122, 574380, 679683, 906244, 1132805, 1359366, 2039049, 2265610, 2718732, 3398415, 4078098, 4531220, 6796830, 8156196, 10195245, 13593660, 20390490, 40780980]

約数ペア:

[(1, 40780980), (2, 20390490), (3, 13593660), (4, 10195245), (5, 8156196), (6, 6796830), (9, 4531220), (10, 4078098), (12, 3398415), (15, 2718732), (18, 2265610), (20, 2039049), (30, 1359366), (36, 1132805), (45, 906244), (60, 679683), (71, 574380), (90, 453122), (142, 287190), (180, 226561), (213, 191460), (284, 143595), (355, 114876), (426, 95730), (639, 63820), (710, 57438), (852, 47865), (1065, 38292), (1278, 31910), (1420, 28719), (2130, 19146), (2556, 15955), (3191, 12780), (3195, 12764), (4260, 9573), (6382, 6390)]