261430936

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{619}}^1$

素因数の和:800

約数の個数: 64

約数和(自身を含む): 549964800

約数和(自身を除く): 288533864

約数列:

[1, 2, 4, 8, 13, 26, 31, 52, 62, 104, 124, 131, 248, 262, 403, 524, 619, 806, 1048, 1238, 1612, 1703, 2476, 3224, 3406, 4061, 4952, 6812, 8047, 8122, 13624, 16094, 16244, 19189, 32188, 32488, 38378, 52793, 64376, 76756, 81089, 105586, 153512, 162178, 211172, 249457, 324356, 422344, 498914, 648712, 997828, 1054157, 1995656, 2108314, 2513759, 4216628, 5027518, 8433256, 10055036, 20110072, 32678867, 65357734, 130715468, 261430936]

約数ペア:

[(1, 261430936), (2, 130715468), (4, 65357734), (8, 32678867), (13, 20110072), (26, 10055036), (31, 8433256), (52, 5027518), (62, 4216628), (104, 2513759), (124, 2108314), (131, 1995656), (248, 1054157), (262, 997828), (403, 648712), (524, 498914), (619, 422344), (806, 324356), (1048, 249457), (1238, 211172), (1612, 162178), (1703, 153512), (2476, 105586), (3224, 81089), (3406, 76756), (4061, 64376), (4952, 52793), (6812, 38378), (8047, 32488), (8122, 32188), (13624, 19189), (16094, 16244)]