30870819

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{277}}^1$

素因数の和:380

約数の個数: 48

約数和(自身を含む): 53776320

約数和(自身を除く): 22905501

約数列:

[1, 3, 7, 9, 21, 29, 61, 63, 87, 183, 203, 261, 277, 427, 549, 609, 831, 1281, 1769, 1827, 1939, 2493, 3843, 5307, 5817, 8033, 12383, 15921, 16897, 17451, 24099, 37149, 50691, 56231, 72297, 111447, 118279, 152073, 168693, 354837, 490013, 506079, 1064511, 1470039, 3430091, 4410117, 10290273, 30870819]

約数ペア:

[(1, 30870819), (3, 10290273), (7, 4410117), (9, 3430091), (21, 1470039), (29, 1064511), (61, 506079), (63, 490013), (87, 354837), (183, 168693), (203, 152073), (261, 118279), (277, 111447), (427, 72297), (549, 56231), (609, 50691), (831, 37149), (1281, 24099), (1769, 17451), (1827, 16897), (1939, 15921), (2493, 12383), (3843, 8033), (5307, 5817)]