28459275

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{101}}^1$

素因数の和:161

約数の個数: 72

約数和(自身を含む): 54361104

約数和(自身を除く): 25901829

約数列:

[1, 3, 5, 13, 15, 17, 25, 39, 51, 65, 75, 85, 101, 195, 221, 255, 289, 303, 325, 425, 505, 663, 867, 975, 1105, 1275, 1313, 1445, 1515, 1717, 2525, 3315, 3757, 3939, 4335, 5151, 5525, 6565, 7225, 7575, 8585, 11271, 16575, 18785, 19695, 21675, 22321, 25755, 29189, 32825, 42925, 56355, 66963, 87567, 93925, 98475, 111605, 128775, 145945, 281775, 334815, 379457, 437835, 558025, 729725, 1138371, 1674075, 1897285, 2189175, 5691855, 9486425, 28459275]

約数ペア:

[(1, 28459275), (3, 9486425), (5, 5691855), (13, 2189175), (15, 1897285), (17, 1674075), (25, 1138371), (39, 729725), (51, 558025), (65, 437835), (75, 379457), (85, 334815), (101, 281775), (195, 145945), (221, 128775), (255, 111605), (289, 98475), (303, 93925), (325, 87567), (425, 66963), (505, 56355), (663, 42925), (867, 32825), (975, 29189), (1105, 25755), (1275, 22321), (1313, 21675), (1445, 19695), (1515, 18785), (1717, 16575), (2525, 11271), (3315, 8585), (3757, 7575), (3939, 7225), (4335, 6565), (5151, 5525)]