20281570208

素因数分解:

$2^5\times {\mathrm{53}}^1\times {\mathrm{193}}^1\times {\mathrm{61961}}^1$

素因数の和:62217

約数の個数: 48

約数和(自身を含む): 40894176456

約数和(自身を除く): 20612606248

約数列:

[1, 2, 4, 8, 16, 32, 53, 106, 193, 212, 386, 424, 772, 848, 1544, 1696, 3088, 6176, 10229, 20458, 40916, 61961, 81832, 123922, 163664, 247844, 327328, 495688, 991376, 1982752, 3283933, 6567866, 11958473, 13135732, 23916946, 26271464, 47833892, 52542928, 95667784, 105085856, 191335568, 382671136, 633799069, 1267598138, 2535196276, 5070392552, 10140785104, 20281570208]

約数ペア:

[(1, 20281570208), (2, 10140785104), (4, 5070392552), (8, 2535196276), (16, 1267598138), (32, 633799069), (53, 382671136), (106, 191335568), (193, 105085856), (212, 95667784), (386, 52542928), (424, 47833892), (772, 26271464), (848, 23916946), (1544, 13135732), (1696, 11958473), (3088, 6567866), (6176, 3283933), (10229, 1982752), (20458, 991376), (40916, 495688), (61961, 327328), (81832, 247844), (123922, 163664)]