140648150

素因数分解:

$2^1\times 5^2\times {\mathrm{109}}^1\times {\mathrm{131}}^1\times {\mathrm{197}}^1$

素因数の和:449

約数の個数: 48

約数和(自身を含む): 267371280

約数和(自身を除く): 126723130

約数列:

[1, 2, 5, 10, 25, 50, 109, 131, 197, 218, 262, 394, 545, 655, 985, 1090, 1310, 1970, 2725, 3275, 4925, 5450, 6550, 9850, 14279, 21473, 25807, 28558, 42946, 51614, 71395, 107365, 129035, 142790, 214730, 258070, 356975, 536825, 645175, 713950, 1073650, 1290350, 2812963, 5625926, 14064815, 28129630, 70324075, 140648150]

約数ペア:

[(1, 140648150), (2, 70324075), (5, 28129630), (10, 14064815), (25, 5625926), (50, 2812963), (109, 1290350), (131, 1073650), (197, 713950), (218, 645175), (262, 536825), (394, 356975), (545, 258070), (655, 214730), (985, 142790), (1090, 129035), (1310, 107365), (1970, 71395), (2725, 51614), (3275, 42946), (4925, 28558), (5450, 25807), (6550, 21473), (9850, 14279)]