1291213736

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{149}}^1\times {\mathrm{421}}^1$

素因数の和:690

約数の個数: 64

約数和(自身を含む): 2552256000

約数和(自身を除く): 1261042264

約数列:

[1, 2, 4, 8, 31, 62, 83, 124, 149, 166, 248, 298, 332, 421, 596, 664, 842, 1192, 1684, 2573, 3368, 4619, 5146, 9238, 10292, 12367, 13051, 18476, 20584, 24734, 26102, 34943, 36952, 49468, 52204, 62729, 69886, 98936, 104408, 125458, 139772, 250916, 279544, 383377, 501832, 766754, 1083233, 1533508, 1944599, 2166466, 3067016, 3889198, 4332932, 5206507, 7778396, 8665864, 10413014, 15556792, 20826028, 41652056, 161401717, 322803434, 645606868, 1291213736]

約数ペア:

[(1, 1291213736), (2, 645606868), (4, 322803434), (8, 161401717), (31, 41652056), (62, 20826028), (83, 15556792), (124, 10413014), (149, 8665864), (166, 7778396), (248, 5206507), (298, 4332932), (332, 3889198), (421, 3067016), (596, 2166466), (664, 1944599), (842, 1533508), (1192, 1083233), (1684, 766754), (2573, 501832), (3368, 383377), (4619, 279544), (5146, 250916), (9238, 139772), (10292, 125458), (12367, 104408), (13051, 98936), (18476, 69886), (20584, 62729), (24734, 52204), (26102, 49468), (34943, 36952)]