1780316.00000000

素因数分解:

$3^3\times 5^2\times {\mathrm{71}}^1\times {\mathrm{311}}^1$

素因数の和:401

約数の個数: 48

約数和(自身を含む): 27855360

約数和(自身を除く): 12950685

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 71, 75, 135, 213, 225, 311, 355, 639, 675, 933, 1065, 1555, 1775, 1917, 2799, 3195, 4665, 5325, 7775, 8397, 9585, 13995, 15975, 22081, 23325, 41985, 47925, 66243, 69975, 110405, 198729, 209925, 331215, 552025, 596187, 993645, 1656075, 2980935, 4968225, 14904675]

約数ペア:

[(1, 14904675), (3, 4968225), (5, 2980935), (9, 1656075), (15, 993645), (25, 596187), (27, 552025), (45, 331215), (71, 209925), (75, 198729), (135, 110405), (213, 69975), (225, 66243), (311, 47925), (355, 41985), (639, 23325), (675, 22081), (933, 15975), (1065, 13995), (1555, 9585), (1775, 8397), (1917, 7775), (2799, 5325), (3195, 4665)]