155678900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{3863}}^1$

素因数の和:3921

約数の個数: 72

約数和(自身を含む): 375642624

約数和(自身を除く): 219963724

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, 3863, 4030, 7726, 8060, 10075, 15452, 19315, 20150, 38630, 40300, 50219, 77260, 96575, 100438, 119753, 193150, 200876, 239506, 251095, 386300, 479012, 502190, 598765, 1004380, 1197530, 1255475, 1556789, 2395060, 2510950, 2993825, 3113578, 5021900, 5987650, 6227156, 7783945, 11975300, 15567890, 31135780, 38919725, 77839450, 155678900]

約数ペア:

[(1, 155678900), (2, 77839450), (4, 38919725), (5, 31135780), (10, 15567890), (13, 11975300), (20, 7783945), (25, 6227156), (26, 5987650), (31, 5021900), (50, 3113578), (52, 2993825), (62, 2510950), (65, 2395060), (100, 1556789), (124, 1255475), (130, 1197530), (155, 1004380), (260, 598765), (310, 502190), (325, 479012), (403, 386300), (620, 251095), (650, 239506), (775, 200876), (806, 193150), (1300, 119753), (1550, 100438), (1612, 96575), (2015, 77260), (3100, 50219), (3863, 40300), (4030, 38630), (7726, 20150), (8060, 19315), (10075, 15452)]