20090480

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{8101}}^1$

素因数の和:8145

約数の個数: 40

約数和(自身を含む): 48223104

約数和(自身を除く): 28132624

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 8101, 16202, 32404, 40505, 64808, 81010, 129616, 162020, 251131, 324040, 502262, 648080, 1004524, 1255655, 2009048, 2511310, 4018096, 5022620, 10045240, 20090480]

約数ペア:

[(1, 20090480), (2, 10045240), (4, 5022620), (5, 4018096), (8, 2511310), (10, 2009048), (16, 1255655), (20, 1004524), (31, 648080), (40, 502262), (62, 324040), (80, 251131), (124, 162020), (155, 129616), (248, 81010), (310, 64808), (496, 40505), (620, 32404), (1240, 16202), (2480, 8101)]