20964230

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{223}}^1$

素因数の和:333

約数の個数: 64

約数和(自身を含む): 46448640

約数和(自身を除く): 25484410

約数列:

[1, 2, 5, 7, 10, 14, 17, 34, 35, 70, 79, 85, 119, 158, 170, 223, 238, 395, 446, 553, 595, 790, 1106, 1115, 1190, 1343, 1561, 2230, 2686, 2765, 3122, 3791, 5530, 6715, 7582, 7805, 9401, 13430, 15610, 17617, 18802, 18955, 26537, 35234, 37910, 47005, 53074, 88085, 94010, 123319, 132685, 176170, 246638, 265370, 299489, 598978, 616595, 1233190, 1497445, 2096423, 2994890, 4192846, 10482115, 20964230]

約数ペア:

[(1, 20964230), (2, 10482115), (5, 4192846), (7, 2994890), (10, 2096423), (14, 1497445), (17, 1233190), (34, 616595), (35, 598978), (70, 299489), (79, 265370), (85, 246638), (119, 176170), (158, 132685), (170, 123319), (223, 94010), (238, 88085), (395, 53074), (446, 47005), (553, 37910), (595, 35234), (790, 26537), (1106, 18955), (1115, 18802), (1190, 17617), (1343, 15610), (1561, 13430), (2230, 9401), (2686, 7805), (2765, 7582), (3122, 6715), (3791, 5530)]