80190490

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{1861}}^1$

素因数の和:2038

約数の個数: 32

約数和(自身を含む): 150151680

約数和(自身を除く): 69961190

約数列:

[1, 2, 5, 10, 31, 62, 139, 155, 278, 310, 695, 1390, 1861, 3722, 4309, 8618, 9305, 18610, 21545, 43090, 57691, 115382, 258679, 288455, 517358, 576910, 1293395, 2586790, 8019049, 16038098, 40095245, 80190490]

約数ペア:

[(1, 80190490), (2, 40095245), (5, 16038098), (10, 8019049), (31, 2586790), (62, 1293395), (139, 576910), (155, 517358), (278, 288455), (310, 258679), (695, 115382), (1390, 57691), (1861, 43090), (3722, 21545), (4309, 18610), (8618, 9305)]