28393875

素因数分解:

$3^3\times 5^3\times {\mathrm{47}}^1\times {\mathrm{179}}^1$

素因数の和:250

約数の個数: 64

約数和(自身を含む): 53913600

約数和(自身を除く): 25519725

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 47, 75, 125, 135, 141, 179, 225, 235, 375, 423, 537, 675, 705, 895, 1125, 1175, 1269, 1611, 2115, 2685, 3375, 3525, 4475, 4833, 5875, 6345, 8055, 8413, 10575, 13425, 17625, 22375, 24165, 25239, 31725, 40275, 42065, 52875, 67125, 75717, 120825, 126195, 158625, 201375, 210325, 227151, 378585, 604125, 630975, 1051625, 1135755, 1892925, 3154875, 5678775, 9464625, 28393875]

約数ペア:

[(1, 28393875), (3, 9464625), (5, 5678775), (9, 3154875), (15, 1892925), (25, 1135755), (27, 1051625), (45, 630975), (47, 604125), (75, 378585), (125, 227151), (135, 210325), (141, 201375), (179, 158625), (225, 126195), (235, 120825), (375, 75717), (423, 67125), (537, 52875), (675, 42065), (705, 40275), (895, 31725), (1125, 25239), (1175, 24165), (1269, 22375), (1611, 17625), (2115, 13425), (2685, 10575), (3375, 8413), (3525, 8055), (4475, 6345), (4833, 5875)]