80840820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{70913}}^1$

素因数の和:70944

約数の個数: 48

約数和(自身を含む): 238271040

約数和(自身を除く): 157430220

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 114, 190, 228, 285, 380, 570, 1140, 70913, 141826, 212739, 283652, 354565, 425478, 709130, 850956, 1063695, 1347347, 1418260, 2127390, 2694694, 4042041, 4254780, 5389388, 6736735, 8084082, 13473470, 16168164, 20210205, 26946940, 40420410, 80840820]

約数ペア:

[(1, 80840820), (2, 40420410), (3, 26946940), (4, 20210205), (5, 16168164), (6, 13473470), (10, 8084082), (12, 6736735), (15, 5389388), (19, 4254780), (20, 4042041), (30, 2694694), (38, 2127390), (57, 1418260), (60, 1347347), (76, 1063695), (95, 850956), (114, 709130), (190, 425478), (228, 354565), (285, 283652), (380, 212739), (570, 141826), (1140, 70913)]