131257100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{3257}}^1$

素因数の和:3315

約数の個数: 72

約数和(自身を含む): 316729728

約数和(自身を除く): 185472628

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 31, 50, 52, 62, 65, 100, 124, 130, 155, 260, 310, 325, 403, 620, 650, 775, 806, 1300, 1550, 1612, 2015, 3100, 3257, 4030, 6514, 8060, 10075, 13028, 16285, 20150, 32570, 40300, 42341, 65140, 81425, 84682, 100967, 162850, 169364, 201934, 211705, 325700, 403868, 423410, 504835, 846820, 1009670, 1058525, 1312571, 2019340, 2117050, 2524175, 2625142, 4234100, 5048350, 5250284, 6562855, 10096700, 13125710, 26251420, 32814275, 65628550, 131257100]

約数ペア:

[(1, 131257100), (2, 65628550), (4, 32814275), (5, 26251420), (10, 13125710), (13, 10096700), (20, 6562855), (25, 5250284), (26, 5048350), (31, 4234100), (50, 2625142), (52, 2524175), (62, 2117050), (65, 2019340), (100, 1312571), (124, 1058525), (130, 1009670), (155, 846820), (260, 504835), (310, 423410), (325, 403868), (403, 325700), (620, 211705), (650, 201934), (775, 169364), (806, 162850), (1300, 100967), (1550, 84682), (1612, 81425), (2015, 65140), (3100, 42341), (3257, 40300), (4030, 32570), (6514, 20150), (8060, 16285), (10075, 13028)]