209201580

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{23719}}^1$

素因数の和:23748

約数の個数: 108

約数和(自身を含む): 738213840

約数和(自身を除く): 529012260

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 49, 60, 63, 70, 84, 90, 98, 105, 126, 140, 147, 180, 196, 210, 245, 252, 294, 315, 420, 441, 490, 588, 630, 735, 882, 980, 1260, 1470, 1764, 2205, 2940, 4410, 8820, 23719, 47438, 71157, 94876, 118595, 142314, 166033, 213471, 237190, 284628, 332066, 355785, 426942, 474380, 498099, 664132, 711570, 830165, 853884, 996198, 1067355, 1162231, 1423140, 1494297, 1660330, 1992396, 2134710, 2324462, 2490495, 2988594, 3320660, 3486693, 4269420, 4648924, 4980990, 5811155, 5977188, 6973386, 7471485, 9961980, 10460079, 11622310, 13946772, 14942970, 17433465, 20920158, 23244620, 29885940, 34866930, 41840316, 52300395, 69733860, 104600790, 209201580]

約数ペア:

[(1, 209201580), (2, 104600790), (3, 69733860), (4, 52300395), (5, 41840316), (6, 34866930), (7, 29885940), (9, 23244620), (10, 20920158), (12, 17433465), (14, 14942970), (15, 13946772), (18, 11622310), (20, 10460079), (21, 9961980), (28, 7471485), (30, 6973386), (35, 5977188), (36, 5811155), (42, 4980990), (45, 4648924), (49, 4269420), (60, 3486693), (63, 3320660), (70, 2988594), (84, 2490495), (90, 2324462), (98, 2134710), (105, 1992396), (126, 1660330), (140, 1494297), (147, 1423140), (180, 1162231), (196, 1067355), (210, 996198), (245, 853884), (252, 830165), (294, 711570), (315, 664132), (420, 498099), (441, 474380), (490, 426942), (588, 355785), (630, 332066), (735, 284628), (882, 237190), (980, 213471), (1260, 166033), (1470, 142314), (1764, 118595), (2205, 94876), (2940, 71157), (4410, 47438), (8820, 23719)]