258540465

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{191}}^1$

素因数の和:342

約数の個数: 64

約数和(自身を含む): 445906944

約数和(自身を除く): 187366479

約数列:

[1, 3, 5, 15, 31, 41, 71, 93, 123, 155, 191, 205, 213, 355, 465, 573, 615, 955, 1065, 1271, 2201, 2865, 2911, 3813, 5921, 6355, 6603, 7831, 8733, 11005, 13561, 14555, 17763, 19065, 23493, 29605, 33015, 39155, 40683, 43665, 67805, 88815, 90241, 117465, 203415, 242761, 270723, 420391, 451205, 556001, 728283, 1213805, 1261173, 1353615, 1668003, 2101955, 2780005, 3641415, 6305865, 8340015, 17236031, 51708093, 86180155, 258540465]

約数ペア:

[(1, 258540465), (3, 86180155), (5, 51708093), (15, 17236031), (31, 8340015), (41, 6305865), (71, 3641415), (93, 2780005), (123, 2101955), (155, 1668003), (191, 1353615), (205, 1261173), (213, 1213805), (355, 728283), (465, 556001), (573, 451205), (615, 420391), (955, 270723), (1065, 242761), (1271, 203415), (2201, 117465), (2865, 90241), (2911, 88815), (3813, 67805), (5921, 43665), (6355, 40683), (6603, 39155), (7831, 33015), (8733, 29605), (11005, 23493), (13561, 19065), (14555, 17763)]