72450920

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{1291}}^1$

素因数の和:1386

約数の個数: 64

約数和(自身を含む): 173024640

約数和(自身を除く): 100573720

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 61, 92, 115, 122, 184, 230, 244, 305, 460, 488, 610, 920, 1220, 1291, 1403, 2440, 2582, 2806, 5164, 5612, 6455, 7015, 10328, 11224, 12910, 14030, 25820, 28060, 29693, 51640, 56120, 59386, 78751, 118772, 148465, 157502, 237544, 296930, 315004, 393755, 593860, 630008, 787510, 1187720, 1575020, 1811273, 3150040, 3622546, 7245092, 9056365, 14490184, 18112730, 36225460, 72450920]

約数ペア:

[(1, 72450920), (2, 36225460), (4, 18112730), (5, 14490184), (8, 9056365), (10, 7245092), (20, 3622546), (23, 3150040), (40, 1811273), (46, 1575020), (61, 1187720), (92, 787510), (115, 630008), (122, 593860), (184, 393755), (230, 315004), (244, 296930), (305, 237544), (460, 157502), (488, 148465), (610, 118772), (920, 78751), (1220, 59386), (1291, 56120), (1403, 51640), (2440, 29693), (2582, 28060), (2806, 25820), (5164, 14030), (5612, 12910), (6455, 11224), (7015, 10328)]