20037686620

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{127}}^1\times {\mathrm{160997}}^1$

素因数の和:161147

約数の個数: 72

約数和(自身を含む): 49334939136

約数和(自身を除く): 29297252516

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 127, 140, 196, 245, 254, 490, 508, 635, 889, 980, 1270, 1778, 2540, 3556, 4445, 6223, 8890, 12446, 17780, 24892, 31115, 62230, 124460, 160997, 321994, 643988, 804985, 1126979, 1609970, 2253958, 3219940, 4507916, 5634895, 7888853, 11269790, 15777706, 20446619, 22539580, 31555412, 39444265, 40893238, 78888530, 81786476, 102233095, 143126333, 157777060, 204466190, 286252666, 408932380, 572505332, 715631665, 1001884331, 1431263330, 2003768662, 2862526660, 4007537324, 5009421655, 10018843310, 20037686620]

約数ペア:

[(1, 20037686620), (2, 10018843310), (4, 5009421655), (5, 4007537324), (7, 2862526660), (10, 2003768662), (14, 1431263330), (20, 1001884331), (28, 715631665), (35, 572505332), (49, 408932380), (70, 286252666), (98, 204466190), (127, 157777060), (140, 143126333), (196, 102233095), (245, 81786476), (254, 78888530), (490, 40893238), (508, 39444265), (635, 31555412), (889, 22539580), (980, 20446619), (1270, 15777706), (1778, 11269790), (2540, 7888853), (3556, 5634895), (4445, 4507916), (6223, 3219940), (8890, 2253958), (12446, 1609970), (17780, 1126979), (24892, 804985), (31115, 643988), (62230, 321994), (124460, 160997)]