81279830

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{262193}}^1$

素因数の和:262231

約数の個数: 16

約数和(自身を含む): 151023744

約数和(自身を除く): 69743914

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 262193, 524386, 1310965, 2621930, 8127983, 16255966, 40639915, 81279830]

約数ペア:

[(1, 81279830), (2, 40639915), (5, 16255966), (10, 8127983), (31, 2621930), (62, 1310965), (155, 524386), (310, 262193)]