18225990

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{313}}^1\times {\mathrm{647}}^1$

素因数の和:973

約数の個数: 48

約数和(自身を含む): 47612448

約数和(自身を除く): 29386458

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 313, 626, 647, 939, 1294, 1565, 1878, 1941, 2817, 3130, 3235, 3882, 4695, 5634, 5823, 6470, 9390, 9705, 11646, 14085, 19410, 28170, 29115, 58230, 202511, 405022, 607533, 1012555, 1215066, 1822599, 2025110, 3037665, 3645198, 6075330, 9112995, 18225990]

約数ペア:

[(1, 18225990), (2, 9112995), (3, 6075330), (5, 3645198), (6, 3037665), (9, 2025110), (10, 1822599), (15, 1215066), (18, 1012555), (30, 607533), (45, 405022), (90, 202511), (313, 58230), (626, 29115), (647, 28170), (939, 19410), (1294, 14085), (1565, 11646), (1878, 9705), (1941, 9390), (2817, 6470), (3130, 5823), (3235, 5634), (3882, 4695)]