19770075

素因数分解:

$3^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{751}}^1$

素因数の和:786

約数の個数: 60

約数和(自身を含む): 39490528

約数和(自身を除く): 19720453

約数列:

[1, 3, 5, 9, 13, 15, 25, 27, 39, 45, 65, 75, 81, 117, 135, 195, 225, 325, 351, 405, 585, 675, 751, 975, 1053, 1755, 2025, 2253, 2925, 3755, 5265, 6759, 8775, 9763, 11265, 18775, 20277, 26325, 29289, 33795, 48815, 56325, 60831, 87867, 101385, 146445, 168975, 244075, 263601, 304155, 439335, 506925, 732225, 790803, 1318005, 1520775, 2196675, 3954015, 6590025, 19770075]

約数ペア:

[(1, 19770075), (3, 6590025), (5, 3954015), (9, 2196675), (13, 1520775), (15, 1318005), (25, 790803), (27, 732225), (39, 506925), (45, 439335), (65, 304155), (75, 263601), (81, 244075), (117, 168975), (135, 146445), (195, 101385), (225, 87867), (325, 60831), (351, 56325), (405, 48815), (585, 33795), (675, 29289), (751, 26325), (975, 20277), (1053, 18775), (1755, 11265), (2025, 9763), (2253, 8775), (2925, 6759), (3755, 5265)]