918054180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{647}}^1\times {\mathrm{7883}}^1$

素因数の和:8545

約数の個数: 72

約数和(自身を含む): 2789422272

約数和(自身を除く): 1871368092

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 647, 1294, 1941, 2588, 3235, 3882, 5823, 6470, 7764, 7883, 9705, 11646, 12940, 15766, 19410, 23292, 23649, 29115, 31532, 38820, 39415, 47298, 58230, 70947, 78830, 94596, 116460, 118245, 141894, 157660, 236490, 283788, 354735, 472980, 709470, 1418940, 5100301, 10200602, 15300903, 20401204, 25501505, 30601806, 45902709, 51003010, 61203612, 76504515, 91805418, 102006020, 153009030, 183610836, 229513545, 306018060, 459027090, 918054180]

約数ペア:

[(1, 918054180), (2, 459027090), (3, 306018060), (4, 229513545), (5, 183610836), (6, 153009030), (9, 102006020), (10, 91805418), (12, 76504515), (15, 61203612), (18, 51003010), (20, 45902709), (30, 30601806), (36, 25501505), (45, 20401204), (60, 15300903), (90, 10200602), (180, 5100301), (647, 1418940), (1294, 709470), (1941, 472980), (2588, 354735), (3235, 283788), (3882, 236490), (5823, 157660), (6470, 141894), (7764, 118245), (7883, 116460), (9705, 94596), (11646, 78830), (12940, 70947), (15766, 58230), (19410, 47298), (23292, 39415), (23649, 38820), (29115, 31532)]