77521275

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1559}}^1$

素因数の和:1605

約数の個数: 72

約数和(自身を含む): 158427360

約数和(自身を除く): 80906085

約数列:

[1, 3, 5, 9, 13, 15, 17, 25, 39, 45, 51, 65, 75, 85, 117, 153, 195, 221, 225, 255, 325, 425, 585, 663, 765, 975, 1105, 1275, 1559, 1989, 2925, 3315, 3825, 4677, 5525, 7795, 9945, 14031, 16575, 20267, 23385, 26503, 38975, 49725, 60801, 70155, 79509, 101335, 116925, 132515, 182403, 238527, 304005, 344539, 350775, 397545, 506675, 662575, 912015, 1033617, 1192635, 1520025, 1722695, 1987725, 3100851, 4560075, 5168085, 5963175, 8613475, 15504255, 25840425, 77521275]

約数ペア:

[(1, 77521275), (3, 25840425), (5, 15504255), (9, 8613475), (13, 5963175), (15, 5168085), (17, 4560075), (25, 3100851), (39, 1987725), (45, 1722695), (51, 1520025), (65, 1192635), (75, 1033617), (85, 912015), (117, 662575), (153, 506675), (195, 397545), (221, 350775), (225, 344539), (255, 304005), (325, 238527), (425, 182403), (585, 132515), (663, 116925), (765, 101335), (975, 79509), (1105, 70155), (1275, 60801), (1559, 49725), (1989, 38975), (2925, 26503), (3315, 23385), (3825, 20267), (4677, 16575), (5525, 14031), (7795, 9945)]