40795720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{367}}^1\times {\mathrm{397}}^1$

素因数の和:782

約数の個数: 64

約数和(自身を含む): 105454080

約数和(自身を除く): 64658360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 367, 397, 734, 794, 1468, 1588, 1835, 1985, 2569, 2779, 2936, 3176, 3670, 3970, 5138, 5558, 7340, 7940, 10276, 11116, 12845, 13895, 14680, 15880, 20552, 22232, 25690, 27790, 51380, 55580, 102760, 111160, 145699, 291398, 582796, 728495, 1019893, 1165592, 1456990, 2039786, 2913980, 4079572, 5099465, 5827960, 8159144, 10198930, 20397860, 40795720]

約数ペア:

[(1, 40795720), (2, 20397860), (4, 10198930), (5, 8159144), (7, 5827960), (8, 5099465), (10, 4079572), (14, 2913980), (20, 2039786), (28, 1456990), (35, 1165592), (40, 1019893), (56, 728495), (70, 582796), (140, 291398), (280, 145699), (367, 111160), (397, 102760), (734, 55580), (794, 51380), (1468, 27790), (1588, 25690), (1835, 22232), (1985, 20552), (2569, 15880), (2779, 14680), (2936, 13895), (3176, 12845), (3670, 11116), (3970, 10276), (5138, 7940), (5558, 7340)]