20260275

素因数分解:

$3^1\times 5^2\times 7^2\times {\mathrm{37}}^1\times {\mathrm{149}}^1$

素因数の和:213

約数の個数: 72

約数和(自身を含む): 40287600

約数和(自身を除く): 20027325

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 37, 49, 75, 105, 111, 147, 149, 175, 185, 245, 259, 447, 525, 555, 735, 745, 777, 925, 1043, 1225, 1295, 1813, 2235, 2775, 3129, 3675, 3725, 3885, 5215, 5439, 5513, 6475, 7301, 9065, 11175, 15645, 16539, 19425, 21903, 26075, 27195, 27565, 36505, 38591, 45325, 78225, 82695, 109515, 115773, 135975, 137825, 182525, 192955, 270137, 413475, 547575, 578865, 810411, 964775, 1350685, 2894325, 4052055, 6753425, 20260275]

約数ペア:

[(1, 20260275), (3, 6753425), (5, 4052055), (7, 2894325), (15, 1350685), (21, 964775), (25, 810411), (35, 578865), (37, 547575), (49, 413475), (75, 270137), (105, 192955), (111, 182525), (147, 137825), (149, 135975), (175, 115773), (185, 109515), (245, 82695), (259, 78225), (447, 45325), (525, 38591), (555, 36505), (735, 27565), (745, 27195), (777, 26075), (925, 21903), (1043, 19425), (1225, 16539), (1295, 15645), (1813, 11175), (2235, 9065), (2775, 7301), (3129, 6475), (3675, 5513), (3725, 5439), (3885, 5215)]