21642960

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2909}}^1$

素因数の和:2956

約数の個数: 80

約数和(自身を含む): 69281280

約数和(自身を除く): 47638320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 40, 48, 60, 62, 80, 93, 120, 124, 155, 186, 240, 248, 310, 372, 465, 496, 620, 744, 930, 1240, 1488, 1860, 2480, 2909, 3720, 5818, 7440, 8727, 11636, 14545, 17454, 23272, 29090, 34908, 43635, 46544, 58180, 69816, 87270, 90179, 116360, 139632, 174540, 180358, 232720, 270537, 349080, 360716, 450895, 541074, 698160, 721432, 901790, 1082148, 1352685, 1442864, 1803580, 2164296, 2705370, 3607160, 4328592, 5410740, 7214320, 10821480, 21642960]

約数ペア:

[(1, 21642960), (2, 10821480), (3, 7214320), (4, 5410740), (5, 4328592), (6, 3607160), (8, 2705370), (10, 2164296), (12, 1803580), (15, 1442864), (16, 1352685), (20, 1082148), (24, 901790), (30, 721432), (31, 698160), (40, 541074), (48, 450895), (60, 360716), (62, 349080), (80, 270537), (93, 232720), (120, 180358), (124, 174540), (155, 139632), (186, 116360), (240, 90179), (248, 87270), (310, 69816), (372, 58180), (465, 46544), (496, 43635), (620, 34908), (744, 29090), (930, 23272), (1240, 17454), (1488, 14545), (1860, 11636), (2480, 8727), (2909, 7440), (3720, 5818)]