81404450

素因数分解:

$2^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{1811}}^1$

素因数の和:1883

約数の個数: 48

約数和(自身を含む): 161775360

約数和(自身を除く): 80370910

約数列:

[1, 2, 5, 10, 25, 29, 31, 50, 58, 62, 145, 155, 290, 310, 725, 775, 899, 1450, 1550, 1798, 1811, 3622, 4495, 8990, 9055, 18110, 22475, 44950, 45275, 52519, 56141, 90550, 105038, 112282, 262595, 280705, 525190, 561410, 1312975, 1403525, 1628089, 2625950, 2807050, 3256178, 8140445, 16280890, 40702225, 81404450]

約数ペア:

[(1, 81404450), (2, 40702225), (5, 16280890), (10, 8140445), (25, 3256178), (29, 2807050), (31, 2625950), (50, 1628089), (58, 1403525), (62, 1312975), (145, 561410), (155, 525190), (290, 280705), (310, 262595), (725, 112282), (775, 105038), (899, 90550), (1450, 56141), (1550, 52519), (1798, 45275), (1811, 44950), (3622, 22475), (4495, 18110), (8990, 9055)]