19732840

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{199}}^1$

素因数の和:314

約数の個数: 64

約数和(自身を含む): 46512000

約数和(自身を除く): 26779160

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 67, 74, 134, 148, 185, 199, 268, 296, 335, 370, 398, 536, 670, 740, 796, 995, 1340, 1480, 1592, 1990, 2479, 2680, 3980, 4958, 7363, 7960, 9916, 12395, 13333, 14726, 19832, 24790, 26666, 29452, 36815, 49580, 53332, 58904, 66665, 73630, 99160, 106664, 133330, 147260, 266660, 294520, 493321, 533320, 986642, 1973284, 2466605, 3946568, 4933210, 9866420, 19732840]

約数ペア:

[(1, 19732840), (2, 9866420), (4, 4933210), (5, 3946568), (8, 2466605), (10, 1973284), (20, 986642), (37, 533320), (40, 493321), (67, 294520), (74, 266660), (134, 147260), (148, 133330), (185, 106664), (199, 99160), (268, 73630), (296, 66665), (335, 58904), (370, 53332), (398, 49580), (536, 36815), (670, 29452), (740, 26666), (796, 24790), (995, 19832), (1340, 14726), (1480, 13333), (1592, 12395), (1990, 9916), (2479, 7960), (2680, 7363), (3980, 4958)]