19550720

素因数分解:

$2^9\times 5^1\times 7^1\times {\mathrm{1091}}^1$

素因数の和:1121

約数の個数: 80

約数和(自身を含む): 53621568

約数和(自身を除く): 34070848

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 280, 320, 448, 512, 560, 640, 896, 1091, 1120, 1280, 1792, 2182, 2240, 2560, 3584, 4364, 4480, 5455, 7637, 8728, 8960, 10910, 15274, 17456, 17920, 21820, 30548, 34912, 38185, 43640, 61096, 69824, 76370, 87280, 122192, 139648, 152740, 174560, 244384, 279296, 305480, 349120, 488768, 558592, 610960, 698240, 977536, 1221920, 1396480, 1955072, 2443840, 2792960, 3910144, 4887680, 9775360, 19550720]

約数ペア:

[(1, 19550720), (2, 9775360), (4, 4887680), (5, 3910144), (7, 2792960), (8, 2443840), (10, 1955072), (14, 1396480), (16, 1221920), (20, 977536), (28, 698240), (32, 610960), (35, 558592), (40, 488768), (56, 349120), (64, 305480), (70, 279296), (80, 244384), (112, 174560), (128, 152740), (140, 139648), (160, 122192), (224, 87280), (256, 76370), (280, 69824), (320, 61096), (448, 43640), (512, 38185), (560, 34912), (640, 30548), (896, 21820), (1091, 17920), (1120, 17456), (1280, 15274), (1792, 10910), (2182, 8960), (2240, 8728), (2560, 7637), (3584, 5455), (4364, 4480)]