28392975

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{571}}^1$

素因数の和:617

約数の個数: 72

約数和(自身を含む): 58090032

約数和(自身を除く): 29697057

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, 571, 585, 663, 765, 975, 1105, 1275, 1713, 1989, 2855, 2925, 3315, 3825, 5139, 5525, 7423, 8565, 9707, 9945, 14275, 16575, 22269, 25695, 29121, 37115, 42825, 48535, 49725, 66807, 87363, 111345, 126191, 128475, 145605, 185575, 242675, 334035, 378573, 436815, 556725, 630955, 728025, 1135719, 1670175, 1892865, 2184075, 3154775, 5678595, 9464325, 28392975]

約数ペア:

[(1, 28392975), (3, 9464325), (5, 5678595), (9, 3154775), (13, 2184075), (15, 1892865), (17, 1670175), (25, 1135719), (39, 728025), (45, 630955), (51, 556725), (65, 436815), (75, 378573), (85, 334035), (117, 242675), (153, 185575), (195, 145605), (221, 128475), (225, 126191), (255, 111345), (325, 87363), (425, 66807), (571, 49725), (585, 48535), (663, 42825), (765, 37115), (975, 29121), (1105, 25695), (1275, 22269), (1713, 16575), (1989, 14275), (2855, 9945), (2925, 9707), (3315, 8565), (3825, 7423), (5139, 5525)]