81964065

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{6421}}^1$

素因数の和:6489

約数の個数: 32

約数和(自身を含む): 140564736

約数和(自身を除く): 58600671

約数列:

[1, 3, 5, 15, 23, 37, 69, 111, 115, 185, 345, 555, 851, 2553, 4255, 6421, 12765, 19263, 32105, 96315, 147683, 237577, 443049, 712731, 738415, 1187885, 2215245, 3563655, 5464271, 16392813, 27321355, 81964065]

約数ペア:

[(1, 81964065), (3, 27321355), (5, 16392813), (15, 5464271), (23, 3563655), (37, 2215245), (69, 1187885), (111, 738415), (115, 712731), (185, 443049), (345, 237577), (555, 147683), (851, 96315), (2553, 32105), (4255, 19263), (6421, 12765)]