1315665920

素因数分解:

$2^{11}\times 5^1\times {\mathrm{128483}}^1$

素因数の和:128510

約数の個数: 48

約数和(自身を含む): 3156851880

約数和(自身を除く): 1841185960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2048, 2560, 5120, 10240, 128483, 256966, 513932, 642415, 1027864, 1284830, 2055728, 2569660, 4111456, 5139320, 8222912, 10278640, 16445824, 20557280, 32891648, 41114560, 65783296, 82229120, 131566592, 164458240, 263133184, 328916480, 657832960, 1315665920]

約数ペア:

[(1, 1315665920), (2, 657832960), (4, 328916480), (5, 263133184), (8, 164458240), (10, 131566592), (16, 82229120), (20, 65783296), (32, 41114560), (40, 32891648), (64, 20557280), (80, 16445824), (128, 10278640), (160, 8222912), (256, 5139320), (320, 4111456), (512, 2569660), (640, 2055728), (1024, 1284830), (1280, 1027864), (2048, 642415), (2560, 513932), (5120, 256966), (10240, 128483)]