28535625

素因数分解:

$3^3\times 5^4\times {\mathrm{19}}^1\times {\mathrm{89}}^1$

素因数の和:137

約数の個数: 80

約数和(自身を含む): 56232000

約数和(自身を除く): 27696375

約数列:

[1, 3, 5, 9, 15, 19, 25, 27, 45, 57, 75, 89, 95, 125, 135, 171, 225, 267, 285, 375, 445, 475, 513, 625, 675, 801, 855, 1125, 1335, 1425, 1691, 1875, 2225, 2375, 2403, 2565, 3375, 4005, 4275, 5073, 5625, 6675, 7125, 8455, 11125, 11875, 12015, 12825, 15219, 16875, 20025, 21375, 25365, 33375, 35625, 42275, 45657, 55625, 60075, 64125, 76095, 100125, 106875, 126825, 166875, 211375, 228285, 300375, 320625, 380475, 500625, 634125, 1056875, 1141425, 1501875, 1902375, 3170625, 5707125, 9511875, 28535625]

約数ペア:

[(1, 28535625), (3, 9511875), (5, 5707125), (9, 3170625), (15, 1902375), (19, 1501875), (25, 1141425), (27, 1056875), (45, 634125), (57, 500625), (75, 380475), (89, 320625), (95, 300375), (125, 228285), (135, 211375), (171, 166875), (225, 126825), (267, 106875), (285, 100125), (375, 76095), (445, 64125), (475, 60075), (513, 55625), (625, 45657), (675, 42275), (801, 35625), (855, 33375), (1125, 25365), (1335, 21375), (1425, 20025), (1691, 16875), (1875, 15219), (2225, 12825), (2375, 12015), (2403, 11875), (2565, 11125), (3375, 8455), (4005, 7125), (4275, 6675), (5073, 5625)]