87708789

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{787}}^1$

素因数の和:890

約数の個数: 48

約数和(自身を含む): 152430720

約数和(自身を除く): 64721931

約数列:

[1, 3, 7, 9, 21, 29, 61, 63, 87, 183, 203, 261, 427, 549, 609, 787, 1281, 1769, 1827, 2361, 3843, 5307, 5509, 7083, 12383, 15921, 16527, 22823, 37149, 48007, 49581, 68469, 111447, 144021, 159761, 205407, 336049, 432063, 479283, 1008147, 1392203, 1437849, 3024441, 4176609, 9745421, 12529827, 29236263, 87708789]

約数ペア:

[(1, 87708789), (3, 29236263), (7, 12529827), (9, 9745421), (21, 4176609), (29, 3024441), (61, 1437849), (63, 1392203), (87, 1008147), (183, 479283), (203, 432063), (261, 336049), (427, 205407), (549, 159761), (609, 144021), (787, 111447), (1281, 68469), (1769, 49581), (1827, 48007), (2361, 37149), (3843, 22823), (5307, 16527), (5509, 15921), (7083, 12383)]