256579908

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{457}}^1$

素因数の和:597

約数の個数: 96

約数和(自身を含む): 667873920

約数和(自身を除く): 411294012

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 59, 61, 78, 118, 122, 156, 177, 183, 236, 244, 354, 366, 457, 708, 732, 767, 793, 914, 1371, 1534, 1586, 1828, 2301, 2379, 2742, 3068, 3172, 3599, 4602, 4758, 5484, 5941, 7198, 9204, 9516, 10797, 11882, 14396, 17823, 21594, 23764, 26963, 27877, 35646, 43188, 46787, 53926, 55754, 71292, 80889, 83631, 93574, 107852, 111508, 140361, 161778, 167262, 187148, 280722, 323556, 334524, 350519, 362401, 561444, 701038, 724802, 1051557, 1087203, 1402076, 1449604, 1644743, 2103114, 2174406, 3289486, 4206228, 4348812, 4934229, 6578972, 9868458, 19736916, 21381659, 42763318, 64144977, 85526636, 128289954, 256579908]

約数ペア:

[(1, 256579908), (2, 128289954), (3, 85526636), (4, 64144977), (6, 42763318), (12, 21381659), (13, 19736916), (26, 9868458), (39, 6578972), (52, 4934229), (59, 4348812), (61, 4206228), (78, 3289486), (118, 2174406), (122, 2103114), (156, 1644743), (177, 1449604), (183, 1402076), (236, 1087203), (244, 1051557), (354, 724802), (366, 701038), (457, 561444), (708, 362401), (732, 350519), (767, 334524), (793, 323556), (914, 280722), (1371, 187148), (1534, 167262), (1586, 161778), (1828, 140361), (2301, 111508), (2379, 107852), (2742, 93574), (3068, 83631), (3172, 80889), (3599, 71292), (4602, 55754), (4758, 53926), (5484, 46787), (5941, 43188), (7198, 35646), (9204, 27877), (9516, 26963), (10797, 23764), (11882, 21594), (14396, 17823)]