81920475

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{4001}}^1$

素因数の和:4037

約数の個数: 72

約数和(自身を含む): 180634272

約数和(自身を除く): 98713797

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 25, 35, 39, 45, 63, 65, 75, 91, 105, 117, 175, 195, 225, 273, 315, 325, 455, 525, 585, 819, 975, 1365, 1575, 2275, 2925, 4001, 4095, 6825, 12003, 20005, 20475, 28007, 36009, 52013, 60015, 84021, 100025, 140035, 156039, 180045, 252063, 260065, 300075, 364091, 420105, 468117, 700175, 780195, 900225, 1092273, 1260315, 1300325, 1820455, 2100525, 2340585, 3276819, 3900975, 5461365, 6301575, 9102275, 11702925, 16384095, 27306825, 81920475]

約数ペア:

[(1, 81920475), (3, 27306825), (5, 16384095), (7, 11702925), (9, 9102275), (13, 6301575), (15, 5461365), (21, 3900975), (25, 3276819), (35, 2340585), (39, 2100525), (45, 1820455), (63, 1300325), (65, 1260315), (75, 1092273), (91, 900225), (105, 780195), (117, 700175), (175, 468117), (195, 420105), (225, 364091), (273, 300075), (315, 260065), (325, 252063), (455, 180045), (525, 156039), (585, 140035), (819, 100025), (975, 84021), (1365, 60015), (1575, 52013), (2275, 36009), (2925, 28007), (4001, 20475), (4095, 20005), (6825, 12003)]