66235160

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{157}}^1\times {\mathrm{199}}^1$

素因数の和:420

約数の個数: 64

約数和(自身を含む): 153576000

約数和(自身を除く): 87340840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 157, 199, 212, 265, 314, 398, 424, 530, 628, 785, 796, 995, 1060, 1256, 1570, 1592, 1990, 2120, 3140, 3980, 6280, 7960, 8321, 10547, 16642, 21094, 31243, 33284, 41605, 42188, 52735, 62486, 66568, 83210, 84376, 105470, 124972, 156215, 166420, 210940, 249944, 312430, 332840, 421880, 624860, 1249720, 1655879, 3311758, 6623516, 8279395, 13247032, 16558790, 33117580, 66235160]

約数ペア:

[(1, 66235160), (2, 33117580), (4, 16558790), (5, 13247032), (8, 8279395), (10, 6623516), (20, 3311758), (40, 1655879), (53, 1249720), (106, 624860), (157, 421880), (199, 332840), (212, 312430), (265, 249944), (314, 210940), (398, 166420), (424, 156215), (530, 124972), (628, 105470), (785, 84376), (796, 83210), (995, 66568), (1060, 62486), (1256, 52735), (1570, 42188), (1592, 41605), (1990, 33284), (2120, 31243), (3140, 21094), (3980, 16642), (6280, 10547), (7960, 8321)]