30978018

素因数分解:

$2^1\times 3^3\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{277}}^1$

素因数の和:416

約数の個数: 64

約数和(自身を含む): 73392000

約数和(自身を除く): 42413982

約数列:

[1, 2, 3, 6, 9, 18, 19, 27, 38, 54, 57, 109, 114, 171, 218, 277, 327, 342, 513, 554, 654, 831, 981, 1026, 1662, 1962, 2071, 2493, 2943, 4142, 4986, 5263, 5886, 6213, 7479, 10526, 12426, 14958, 15789, 18639, 30193, 31578, 37278, 47367, 55917, 60386, 90579, 94734, 111834, 142101, 181158, 271737, 284202, 543474, 573667, 815211, 1147334, 1630422, 1721001, 3442002, 5163003, 10326006, 15489009, 30978018]

約数ペア:

[(1, 30978018), (2, 15489009), (3, 10326006), (6, 5163003), (9, 3442002), (18, 1721001), (19, 1630422), (27, 1147334), (38, 815211), (54, 573667), (57, 543474), (109, 284202), (114, 271737), (171, 181158), (218, 142101), (277, 111834), (327, 94734), (342, 90579), (513, 60386), (554, 55917), (654, 47367), (831, 37278), (981, 31578), (1026, 30193), (1662, 18639), (1962, 15789), (2071, 14958), (2493, 12426), (2943, 10526), (4142, 7479), (4986, 6213), (5263, 5886)]