129783460

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{229}}^1\times {\mathrm{659}}^1$

素因数の和:940

約数の個数: 48

約数和(自身を含む): 280526400

約数和(自身を除く): 150742940

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 229, 430, 458, 659, 860, 916, 1145, 1318, 2290, 2636, 3295, 4580, 6590, 9847, 13180, 19694, 28337, 39388, 49235, 56674, 98470, 113348, 141685, 150911, 196940, 283370, 301822, 566740, 603644, 754555, 1509110, 3018220, 6489173, 12978346, 25956692, 32445865, 64891730, 129783460]

約数ペア:

[(1, 129783460), (2, 64891730), (4, 32445865), (5, 25956692), (10, 12978346), (20, 6489173), (43, 3018220), (86, 1509110), (172, 754555), (215, 603644), (229, 566740), (430, 301822), (458, 283370), (659, 196940), (860, 150911), (916, 141685), (1145, 113348), (1318, 98470), (2290, 56674), (2636, 49235), (3295, 39388), (4580, 28337), (6590, 19694), (9847, 13180)]