16239718840

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{255181}}^1$

素因数の和:255272

約数の個数: 64

約数和(自身を含む): 38399787360

約数和(自身を除く): 22160068520

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 43, 74, 86, 148, 172, 185, 215, 296, 344, 370, 430, 740, 860, 1480, 1591, 1720, 3182, 6364, 7955, 12728, 15910, 31820, 63640, 255181, 510362, 1020724, 1275905, 2041448, 2551810, 5103620, 9441697, 10207240, 10972783, 18883394, 21945566, 37766788, 43891132, 47208485, 54863915, 75533576, 87782264, 94416970, 109727830, 188833940, 219455660, 377667880, 405992971, 438911320, 811985942, 1623971884, 2029964855, 3247943768, 4059929710, 8119859420, 16239718840]

約数ペア:

[(1, 16239718840), (2, 8119859420), (4, 4059929710), (5, 3247943768), (8, 2029964855), (10, 1623971884), (20, 811985942), (37, 438911320), (40, 405992971), (43, 377667880), (74, 219455660), (86, 188833940), (148, 109727830), (172, 94416970), (185, 87782264), (215, 75533576), (296, 54863915), (344, 47208485), (370, 43891132), (430, 37766788), (740, 21945566), (860, 18883394), (1480, 10972783), (1591, 10207240), (1720, 9441697), (3182, 5103620), (6364, 2551810), (7955, 2041448), (12728, 1275905), (15910, 1020724), (31820, 510362), (63640, 255181)]