18413420

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{149}}^1\times {\mathrm{167}}^1$

素因数の和:362

約数の個数: 48

約数和(自身を含む): 40219200

約数和(自身を除く): 21805780

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 149, 167, 185, 298, 334, 370, 596, 668, 740, 745, 835, 1490, 1670, 2980, 3340, 5513, 6179, 11026, 12358, 22052, 24716, 24883, 27565, 30895, 49766, 55130, 61790, 99532, 110260, 123580, 124415, 248830, 497660, 920671, 1841342, 3682684, 4603355, 9206710, 18413420]

約数ペア:

[(1, 18413420), (2, 9206710), (4, 4603355), (5, 3682684), (10, 1841342), (20, 920671), (37, 497660), (74, 248830), (148, 124415), (149, 123580), (167, 110260), (185, 99532), (298, 61790), (334, 55130), (370, 49766), (596, 30895), (668, 27565), (740, 24883), (745, 24716), (835, 22052), (1490, 12358), (1670, 11026), (2980, 6179), (3340, 5513)]