19370240

素因数分解:

$2^8\times 5^1\times {\mathrm{37}}^1\times {\mathrm{409}}^1$

素因数の和:467

約数の個数: 72

約数和(自身を含む): 47768280

約数和(自身を除く): 28398040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 37, 40, 64, 74, 80, 128, 148, 160, 185, 256, 296, 320, 370, 409, 592, 640, 740, 818, 1184, 1280, 1480, 1636, 2045, 2368, 2960, 3272, 4090, 4736, 5920, 6544, 8180, 9472, 11840, 13088, 15133, 16360, 23680, 26176, 30266, 32720, 47360, 52352, 60532, 65440, 75665, 104704, 121064, 130880, 151330, 242128, 261760, 302660, 484256, 523520, 605320, 968512, 1210640, 1937024, 2421280, 3874048, 4842560, 9685120, 19370240]

約数ペア:

[(1, 19370240), (2, 9685120), (4, 4842560), (5, 3874048), (8, 2421280), (10, 1937024), (16, 1210640), (20, 968512), (32, 605320), (37, 523520), (40, 484256), (64, 302660), (74, 261760), (80, 242128), (128, 151330), (148, 130880), (160, 121064), (185, 104704), (256, 75665), (296, 65440), (320, 60532), (370, 52352), (409, 47360), (592, 32720), (640, 30266), (740, 26176), (818, 23680), (1184, 16360), (1280, 15133), (1480, 13088), (1636, 11840), (2045, 9472), (2368, 8180), (2960, 6544), (3272, 5920), (4090, 4736)]