20080640

素因数分解:

$2^{11}\times 5^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1$

素因数の和:117

約数の個数: 96

約数和(自身を含む): 50417640

約数和(自身を除く): 30337000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 37, 40, 53, 64, 74, 80, 106, 128, 148, 160, 185, 212, 256, 265, 296, 320, 370, 424, 512, 530, 592, 640, 740, 848, 1024, 1060, 1184, 1280, 1480, 1696, 1961, 2048, 2120, 2368, 2560, 2960, 3392, 3922, 4240, 4736, 5120, 5920, 6784, 7844, 8480, 9472, 9805, 10240, 11840, 13568, 15688, 16960, 18944, 19610, 23680, 27136, 31376, 33920, 37888, 39220, 47360, 54272, 62752, 67840, 75776, 78440, 94720, 108544, 125504, 135680, 156880, 189440, 251008, 271360, 313760, 378880, 502016, 542720, 627520, 1004032, 1255040, 2008064, 2510080, 4016128, 5020160, 10040320, 20080640]

約数ペア:

[(1, 20080640), (2, 10040320), (4, 5020160), (5, 4016128), (8, 2510080), (10, 2008064), (16, 1255040), (20, 1004032), (32, 627520), (37, 542720), (40, 502016), (53, 378880), (64, 313760), (74, 271360), (80, 251008), (106, 189440), (128, 156880), (148, 135680), (160, 125504), (185, 108544), (212, 94720), (256, 78440), (265, 75776), (296, 67840), (320, 62752), (370, 54272), (424, 47360), (512, 39220), (530, 37888), (592, 33920), (640, 31376), (740, 27136), (848, 23680), (1024, 19610), (1060, 18944), (1184, 16960), (1280, 15688), (1480, 13568), (1696, 11840), (1961, 10240), (2048, 9805), (2120, 9472), (2368, 8480), (2560, 7844), (2960, 6784), (3392, 5920), (3922, 5120), (4240, 4736)]