664651005

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{149}}^1\times {\mathrm{181}}^1$

素因数の和:422

約数の個数: 64

約数和(自身を含む): 1132185600

約数和(自身を除く): 467534595

約数列:

[1, 3, 5, 15, 31, 53, 93, 149, 155, 159, 181, 265, 447, 465, 543, 745, 795, 905, 1643, 2235, 2715, 4619, 4929, 5611, 7897, 8215, 9593, 13857, 16833, 23095, 23691, 24645, 26969, 28055, 28779, 39485, 47965, 69285, 80907, 84165, 118455, 134845, 143895, 244807, 297383, 404535, 734421, 836039, 892149, 1224035, 1429357, 1486915, 2508117, 3672105, 4180195, 4288071, 4460745, 7146785, 12540585, 21440355, 44310067, 132930201, 221550335, 664651005]

約数ペア:

[(1, 664651005), (3, 221550335), (5, 132930201), (15, 44310067), (31, 21440355), (53, 12540585), (93, 7146785), (149, 4460745), (155, 4288071), (159, 4180195), (181, 3672105), (265, 2508117), (447, 1486915), (465, 1429357), (543, 1224035), (745, 892149), (795, 836039), (905, 734421), (1643, 404535), (2235, 297383), (2715, 244807), (4619, 143895), (4929, 134845), (5611, 118455), (7897, 84165), (8215, 80907), (9593, 69285), (13857, 47965), (16833, 39485), (23095, 28779), (23691, 28055), (24645, 26969)]