18303160

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1\times {\mathrm{149}}^1$

素因数の和:280

約数の個数: 64

約数和(自身を含む): 43092000

約数和(自身を除く): 24788840

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 83, 148, 149, 166, 185, 296, 298, 332, 370, 415, 596, 664, 740, 745, 830, 1192, 1480, 1490, 1660, 2980, 3071, 3320, 5513, 5960, 6142, 11026, 12284, 12367, 15355, 22052, 24568, 24734, 27565, 30710, 44104, 49468, 55130, 61420, 61835, 98936, 110260, 122840, 123670, 220520, 247340, 457579, 494680, 915158, 1830316, 2287895, 3660632, 4575790, 9151580, 18303160]

約数ペア:

[(1, 18303160), (2, 9151580), (4, 4575790), (5, 3660632), (8, 2287895), (10, 1830316), (20, 915158), (37, 494680), (40, 457579), (74, 247340), (83, 220520), (148, 123670), (149, 122840), (166, 110260), (185, 98936), (296, 61835), (298, 61420), (332, 55130), (370, 49468), (415, 44104), (596, 30710), (664, 27565), (740, 24734), (745, 24568), (830, 22052), (1192, 15355), (1480, 12367), (1490, 12284), (1660, 11026), (2980, 6142), (3071, 5960), (3320, 5513)]