72042009

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{131}}^1\times {\mathrm{239}}^1$

素因数の和:445

約数の個数: 32

約数和(自身を含む): 106444800

約数和(自身を除く): 34402791

約数列:

[1, 3, 13, 39, 59, 131, 177, 239, 393, 717, 767, 1703, 2301, 3107, 5109, 7729, 9321, 14101, 23187, 31309, 42303, 93927, 100477, 183313, 301431, 407017, 549939, 1221051, 1847231, 5541693, 24014003, 72042009]

約数ペア:

[(1, 72042009), (3, 24014003), (13, 5541693), (39, 1847231), (59, 1221051), (131, 549939), (177, 407017), (239, 301431), (393, 183313), (717, 100477), (767, 93927), (1703, 42303), (2301, 31309), (3107, 23187), (5109, 14101), (7729, 9321)]