15967575

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{103}}^1$

素因数の和:185

約数の個数: 72

約数和(自身を含む): 31685472

約数和(自身を除く): 15717897

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 45, 53, 65, 75, 103, 117, 159, 195, 225, 265, 309, 325, 477, 515, 585, 689, 795, 927, 975, 1325, 1339, 1545, 2067, 2385, 2575, 2925, 3445, 3975, 4017, 4635, 5459, 6201, 6695, 7725, 10335, 11925, 12051, 16377, 17225, 20085, 23175, 27295, 31005, 33475, 49131, 51675, 60255, 70967, 81885, 100425, 136475, 155025, 212901, 245655, 301275, 354835, 409425, 638703, 1064505, 1228275, 1774175, 3193515, 5322525, 15967575]

約数ペア:

[(1, 15967575), (3, 5322525), (5, 3193515), (9, 1774175), (13, 1228275), (15, 1064505), (25, 638703), (39, 409425), (45, 354835), (53, 301275), (65, 245655), (75, 212901), (103, 155025), (117, 136475), (159, 100425), (195, 81885), (225, 70967), (265, 60255), (309, 51675), (325, 49131), (477, 33475), (515, 31005), (585, 27295), (689, 23175), (795, 20085), (927, 17225), (975, 16377), (1325, 12051), (1339, 11925), (1545, 10335), (2067, 7725), (2385, 6695), (2575, 6201), (2925, 5459), (3445, 4635), (3975, 4017)]