1218245140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{239}}^1\times {\mathrm{1583}}^1$

素因数の和:1861

約数の個数: 96

約数和(自身を含む): 3065610240

約数和(自身を除く): 1847365100

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 239, 322, 460, 478, 644, 805, 956, 1195, 1583, 1610, 1673, 2390, 3166, 3220, 3346, 4780, 5497, 6332, 6692, 7915, 8365, 10994, 11081, 15830, 16730, 21988, 22162, 27485, 31660, 33460, 36409, 38479, 44324, 54970, 55405, 72818, 76958, 109940, 110810, 145636, 153916, 182045, 192395, 221620, 254863, 364090, 378337, 384790, 509726, 728180, 756674, 769580, 1019452, 1274315, 1513348, 1891685, 2548630, 2648359, 3783370, 5097260, 5296718, 7566740, 8701751, 10593436, 13241795, 17403502, 26483590, 34807004, 43508755, 52967180, 60912257, 87017510, 121824514, 174035020, 243649028, 304561285, 609122570, 1218245140]

約数ペア:

[(1, 1218245140), (2, 609122570), (4, 304561285), (5, 243649028), (7, 174035020), (10, 121824514), (14, 87017510), (20, 60912257), (23, 52967180), (28, 43508755), (35, 34807004), (46, 26483590), (70, 17403502), (92, 13241795), (115, 10593436), (140, 8701751), (161, 7566740), (230, 5296718), (239, 5097260), (322, 3783370), (460, 2648359), (478, 2548630), (644, 1891685), (805, 1513348), (956, 1274315), (1195, 1019452), (1583, 769580), (1610, 756674), (1673, 728180), (2390, 509726), (3166, 384790), (3220, 378337), (3346, 364090), (4780, 254863), (5497, 221620), (6332, 192395), (6692, 182045), (7915, 153916), (8365, 145636), (10994, 110810), (11081, 109940), (15830, 76958), (16730, 72818), (21988, 55405), (22162, 54970), (27485, 44324), (31660, 38479), (33460, 36409)]