280960316

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{3557}}^1$

素因数の和:3619

約数の個数: 72

約数和(自身を含む): 635999616

約数和(自身を除く): 355039300

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 31, 49, 52, 62, 91, 98, 124, 182, 196, 217, 364, 403, 434, 637, 806, 868, 1274, 1519, 1612, 2548, 2821, 3038, 3557, 5642, 6076, 7114, 11284, 14228, 19747, 24899, 39494, 46241, 49798, 78988, 92482, 99596, 110267, 174293, 184964, 220534, 323687, 348586, 441068, 647374, 697172, 771869, 1294748, 1433471, 1543738, 2265809, 2866942, 3087476, 4531618, 5403083, 5733884, 9063236, 10034297, 10806166, 20068594, 21612332, 40137188, 70240079, 140480158, 280960316]

約数ペア:

[(1, 280960316), (2, 140480158), (4, 70240079), (7, 40137188), (13, 21612332), (14, 20068594), (26, 10806166), (28, 10034297), (31, 9063236), (49, 5733884), (52, 5403083), (62, 4531618), (91, 3087476), (98, 2866942), (124, 2265809), (182, 1543738), (196, 1433471), (217, 1294748), (364, 771869), (403, 697172), (434, 647374), (637, 441068), (806, 348586), (868, 323687), (1274, 220534), (1519, 184964), (1612, 174293), (2548, 110267), (2821, 99596), (3038, 92482), (3557, 78988), (5642, 49798), (6076, 46241), (7114, 39494), (11284, 24899), (14228, 19747)]