215210320

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{206933}}^1$

素因数の和:206959

約数の個数: 40

約数和(自身を含む): 538856136

約数和(自身を除く): 323645816

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 206933, 413866, 827732, 1034665, 1655464, 2069330, 2690129, 3310928, 4138660, 5380258, 8277320, 10760516, 13450645, 16554640, 21521032, 26901290, 43042064, 53802580, 107605160, 215210320]

約数ペア:

[(1, 215210320), (2, 107605160), (4, 53802580), (5, 43042064), (8, 26901290), (10, 21521032), (13, 16554640), (16, 13450645), (20, 10760516), (26, 8277320), (40, 5380258), (52, 4138660), (65, 3310928), (80, 2690129), (104, 2069330), (130, 1655464), (208, 1034665), (260, 827732), (520, 413866), (1040, 206933)]