213141180

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{72497}}^1$

素因数の和:72523

約数の個数: 72

約数和(自身を含む): 694240848

約数和(自身を除く): 481099668

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 72497, 144994, 217491, 289988, 362485, 434982, 507479, 724970, 869964, 1014958, 1087455, 1449940, 1522437, 2029916, 2174910, 2537395, 3044874, 3552353, 4349820, 5074790, 6089748, 7104706, 7612185, 10149580, 10657059, 14209412, 15224370, 17761765, 21314118, 30448740, 35523530, 42628236, 53285295, 71047060, 106570590, 213141180]

約数ペア:

[(1, 213141180), (2, 106570590), (3, 71047060), (4, 53285295), (5, 42628236), (6, 35523530), (7, 30448740), (10, 21314118), (12, 17761765), (14, 15224370), (15, 14209412), (20, 10657059), (21, 10149580), (28, 7612185), (30, 7104706), (35, 6089748), (42, 5074790), (49, 4349820), (60, 3552353), (70, 3044874), (84, 2537395), (98, 2174910), (105, 2029916), (140, 1522437), (147, 1449940), (196, 1087455), (210, 1014958), (245, 869964), (294, 724970), (420, 507479), (490, 434982), (588, 362485), (735, 289988), (980, 217491), (1470, 144994), (2940, 72497)]