71209125

素因数分解:

$3^4\times 5^3\times {\mathrm{13}}^1\times {\mathrm{541}}^1$

素因数の和:581

約数の個数: 80

約数和(自身を含む): 143231088

約数和(自身を除く): 72021963

約数列:

[1, 3, 5, 9, 13, 15, 25, 27, 39, 45, 65, 75, 81, 117, 125, 135, 195, 225, 325, 351, 375, 405, 541, 585, 675, 975, 1053, 1125, 1623, 1625, 1755, 2025, 2705, 2925, 3375, 4869, 4875, 5265, 7033, 8115, 8775, 10125, 13525, 14607, 14625, 21099, 24345, 26325, 35165, 40575, 43821, 43875, 63297, 67625, 73035, 105495, 121725, 131625, 175825, 189891, 202875, 219105, 316485, 365175, 527475, 569673, 608625, 879125, 949455, 1095525, 1582425, 1825875, 2637375, 2848365, 4747275, 5477625, 7912125, 14241825, 23736375, 71209125]

約数ペア:

[(1, 71209125), (3, 23736375), (5, 14241825), (9, 7912125), (13, 5477625), (15, 4747275), (25, 2848365), (27, 2637375), (39, 1825875), (45, 1582425), (65, 1095525), (75, 949455), (81, 879125), (117, 608625), (125, 569673), (135, 527475), (195, 365175), (225, 316485), (325, 219105), (351, 202875), (375, 189891), (405, 175825), (541, 131625), (585, 121725), (675, 105495), (975, 73035), (1053, 67625), (1125, 63297), (1623, 43875), (1625, 43821), (1755, 40575), (2025, 35165), (2705, 26325), (2925, 24345), (3375, 21099), (4869, 14625), (4875, 14607), (5265, 13525), (7033, 10125), (8115, 8775)]