81564990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{5101}}^1$

素因数の和:5165

約数の個数: 64

約数和(自身を含む): 215998272

約数和(自身を除く): 134433282

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 41, 65, 78, 82, 123, 130, 195, 205, 246, 390, 410, 533, 615, 1066, 1230, 1599, 2665, 3198, 5101, 5330, 7995, 10202, 15303, 15990, 25505, 30606, 51010, 66313, 76515, 132626, 153030, 198939, 209141, 331565, 397878, 418282, 627423, 663130, 994695, 1045705, 1254846, 1989390, 2091410, 2718833, 3137115, 5437666, 6274230, 8156499, 13594165, 16312998, 27188330, 40782495, 81564990]

約数ペア:

[(1, 81564990), (2, 40782495), (3, 27188330), (5, 16312998), (6, 13594165), (10, 8156499), (13, 6274230), (15, 5437666), (26, 3137115), (30, 2718833), (39, 2091410), (41, 1989390), (65, 1254846), (78, 1045705), (82, 994695), (123, 663130), (130, 627423), (195, 418282), (205, 397878), (246, 331565), (390, 209141), (410, 198939), (533, 153030), (615, 132626), (1066, 76515), (1230, 66313), (1599, 51010), (2665, 30606), (3198, 25505), (5101, 15990), (5330, 15303), (7995, 10202)]