20121626168

素因数分解:

$2^3\times 7^2\times {\mathrm{157}}^1\times {\mathrm{326947}}^1$

素因数の和:327124

約数の個数: 48

約数和(自身を含む): 44167405320

約数和(自身を除く): 24045779152

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 157, 196, 314, 392, 628, 1099, 1256, 2198, 4396, 7693, 8792, 15386, 30772, 61544, 326947, 653894, 1307788, 2288629, 2615576, 4577258, 9154516, 16020403, 18309032, 32040806, 51330679, 64081612, 102661358, 128163224, 205322716, 359314753, 410645432, 718629506, 1437259012, 2515203271, 2874518024, 5030406542, 10060813084, 20121626168]

約数ペア:

[(1, 20121626168), (2, 10060813084), (4, 5030406542), (7, 2874518024), (8, 2515203271), (14, 1437259012), (28, 718629506), (49, 410645432), (56, 359314753), (98, 205322716), (157, 128163224), (196, 102661358), (314, 64081612), (392, 51330679), (628, 32040806), (1099, 18309032), (1256, 16020403), (2198, 9154516), (4396, 4577258), (7693, 2615576), (8792, 2288629), (15386, 1307788), (30772, 653894), (61544, 326947)]