280712925

素因数分解:

$3^3\times 5^2\times {\mathrm{17}}^2\times {\mathrm{1439}}^1$

素因数の和:1492

約数の個数: 72

約数和(自身を含む): 548179200

約数和(自身を除く): 267466275

約数列:

[1, 3, 5, 9, 15, 17, 25, 27, 45, 51, 75, 85, 135, 153, 225, 255, 289, 425, 459, 675, 765, 867, 1275, 1439, 1445, 2295, 2601, 3825, 4317, 4335, 7195, 7225, 7803, 11475, 12951, 13005, 21585, 21675, 24463, 35975, 38853, 39015, 64755, 65025, 73389, 107925, 122315, 194265, 195075, 220167, 323775, 366945, 415871, 611575, 660501, 971325, 1100835, 1247613, 1834725, 2079355, 3302505, 3742839, 5504175, 6238065, 10396775, 11228517, 16512525, 18714195, 31190325, 56142585, 93570975, 280712925]

約数ペア:

[(1, 280712925), (3, 93570975), (5, 56142585), (9, 31190325), (15, 18714195), (17, 16512525), (25, 11228517), (27, 10396775), (45, 6238065), (51, 5504175), (75, 3742839), (85, 3302505), (135, 2079355), (153, 1834725), (225, 1247613), (255, 1100835), (289, 971325), (425, 660501), (459, 611575), (675, 415871), (765, 366945), (867, 323775), (1275, 220167), (1439, 195075), (1445, 194265), (2295, 122315), (2601, 107925), (3825, 73389), (4317, 65025), (4335, 64755), (7195, 39015), (7225, 38853), (7803, 35975), (11475, 24463), (12951, 21675), (13005, 21585)]