77474890

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{491}}^1\times {\mathrm{509}}^1$

素因数の和:1038

約数の個数: 32

約数和(自身を含む): 144529920

約数和(自身を除く): 67055030

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 491, 509, 982, 1018, 2455, 2545, 4910, 5090, 15221, 15779, 30442, 31558, 76105, 78895, 152210, 157790, 249919, 499838, 1249595, 2499190, 7747489, 15494978, 38737445, 77474890]

約数ペア:

[(1, 77474890), (2, 38737445), (5, 15494978), (10, 7747489), (31, 2499190), (62, 1249595), (155, 499838), (310, 249919), (491, 157790), (509, 152210), (982, 78895), (1018, 76105), (2455, 31558), (2545, 30442), (4910, 15779), (5090, 15221)]