20496751485

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{191}}^1\times {\mathrm{229}}^1\times {\mathrm{4463}}^1$

素因数の和:4898

約数の個数: 64

約数和(自身を含む): 37849006080

約数和(自身を除く): 17352254595

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 191, 229, 573, 687, 955, 1145, 1337, 1603, 2865, 3435, 4011, 4463, 4809, 6685, 8015, 13389, 20055, 22315, 24045, 31241, 43739, 66945, 93723, 131217, 156205, 218695, 306173, 468615, 656085, 852433, 918519, 1022027, 1530865, 2557299, 3066081, 4262165, 4592595, 5110135, 5967031, 7154189, 12786495, 15330405, 17901093, 21462567, 29835155, 35770945, 89505465, 107312835, 195207157, 585621471, 976035785, 1366450099, 2928107355, 4099350297, 6832250495, 20496751485]

約数ペア:

[(1, 20496751485), (3, 6832250495), (5, 4099350297), (7, 2928107355), (15, 1366450099), (21, 976035785), (35, 585621471), (105, 195207157), (191, 107312835), (229, 89505465), (573, 35770945), (687, 29835155), (955, 21462567), (1145, 17901093), (1337, 15330405), (1603, 12786495), (2865, 7154189), (3435, 5967031), (4011, 5110135), (4463, 4592595), (4809, 4262165), (6685, 3066081), (8015, 2557299), (13389, 1530865), (20055, 1022027), (22315, 918519), (24045, 852433), (31241, 656085), (43739, 468615), (66945, 306173), (93723, 218695), (131217, 156205)]