72756820

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{277}}^1\times {\mathrm{571}}^1$

素因数の和:880

約数の個数: 48

約数和(自身を含む): 160288128

約数和(自身を除く): 87531308

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 277, 460, 554, 571, 1108, 1142, 1385, 2284, 2770, 2855, 5540, 5710, 6371, 11420, 12742, 13133, 25484, 26266, 31855, 52532, 63710, 65665, 127420, 131330, 158167, 262660, 316334, 632668, 790835, 1581670, 3163340, 3637841, 7275682, 14551364, 18189205, 36378410, 72756820]

約数ペア:

[(1, 72756820), (2, 36378410), (4, 18189205), (5, 14551364), (10, 7275682), (20, 3637841), (23, 3163340), (46, 1581670), (92, 790835), (115, 632668), (230, 316334), (277, 262660), (460, 158167), (554, 131330), (571, 127420), (1108, 65665), (1142, 63710), (1385, 52532), (2284, 31855), (2770, 26266), (2855, 25484), (5540, 13133), (5710, 12742), (6371, 11420)]