205236990

素因数分解:

$2^1\times 3^4\times 5^1\times 7^2\times {\mathrm{5171}}^1$

素因数の和:5204

約数の個数: 120

約数和(自身を含む): 642083112

約数和(自身を除く): 436846122

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 49, 54, 63, 70, 81, 90, 98, 105, 126, 135, 147, 162, 189, 210, 245, 270, 294, 315, 378, 405, 441, 490, 567, 630, 735, 810, 882, 945, 1134, 1323, 1470, 1890, 2205, 2646, 2835, 3969, 4410, 5171, 5670, 6615, 7938, 10342, 13230, 15513, 19845, 25855, 31026, 36197, 39690, 46539, 51710, 72394, 77565, 93078, 108591, 139617, 155130, 180985, 217182, 232695, 253379, 279234, 325773, 361970, 418851, 465390, 506758, 542955, 651546, 698085, 760137, 837702, 977319, 1085910, 1266895, 1396170, 1520274, 1628865, 1954638, 2094255, 2280411, 2533790, 2931957, 3257730, 3800685, 4188510, 4560822, 4886595, 5863914, 6841233, 7601370, 9773190, 11402055, 13682466, 14659785, 20523699, 22804110, 29319570, 34206165, 41047398, 68412330, 102618495, 205236990]

約数ペア:

[(1, 205236990), (2, 102618495), (3, 68412330), (5, 41047398), (6, 34206165), (7, 29319570), (9, 22804110), (10, 20523699), (14, 14659785), (15, 13682466), (18, 11402055), (21, 9773190), (27, 7601370), (30, 6841233), (35, 5863914), (42, 4886595), (45, 4560822), (49, 4188510), (54, 3800685), (63, 3257730), (70, 2931957), (81, 2533790), (90, 2280411), (98, 2094255), (105, 1954638), (126, 1628865), (135, 1520274), (147, 1396170), (162, 1266895), (189, 1085910), (210, 977319), (245, 837702), (270, 760137), (294, 698085), (315, 651546), (378, 542955), (405, 506758), (441, 465390), (490, 418851), (567, 361970), (630, 325773), (735, 279234), (810, 253379), (882, 232695), (945, 217182), (1134, 180985), (1323, 155130), (1470, 139617), (1890, 108591), (2205, 93078), (2646, 77565), (2835, 72394), (3969, 51710), (4410, 46539), (5171, 39690), (5670, 36197), (6615, 31026), (7938, 25855), (10342, 19845), (13230, 15513)]