28821120

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{883}}^1$

素因数の和:922

約数の個数: 128

約数和(自身を含む): 97381440

約数和(自身を除く): 68560320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 32, 34, 40, 48, 51, 60, 64, 68, 80, 85, 96, 102, 120, 128, 136, 160, 170, 192, 204, 240, 255, 272, 320, 340, 384, 408, 480, 510, 544, 640, 680, 816, 883, 960, 1020, 1088, 1360, 1632, 1766, 1920, 2040, 2176, 2649, 2720, 3264, 3532, 4080, 4415, 5298, 5440, 6528, 7064, 8160, 8830, 10596, 10880, 13245, 14128, 15011, 16320, 17660, 21192, 26490, 28256, 30022, 32640, 35320, 42384, 45033, 52980, 56512, 60044, 70640, 75055, 84768, 90066, 105960, 113024, 120088, 141280, 150110, 169536, 180132, 211920, 225165, 240176, 282560, 300220, 339072, 360264, 423840, 450330, 480352, 565120, 600440, 720528, 847680, 900660, 960704, 1200880, 1441056, 1695360, 1801320, 1921408, 2401760, 2882112, 3602640, 4803520, 5764224, 7205280, 9607040, 14410560, 28821120]

約数ペア:

[(1, 28821120), (2, 14410560), (3, 9607040), (4, 7205280), (5, 5764224), (6, 4803520), (8, 3602640), (10, 2882112), (12, 2401760), (15, 1921408), (16, 1801320), (17, 1695360), (20, 1441056), (24, 1200880), (30, 960704), (32, 900660), (34, 847680), (40, 720528), (48, 600440), (51, 565120), (60, 480352), (64, 450330), (68, 423840), (80, 360264), (85, 339072), (96, 300220), (102, 282560), (120, 240176), (128, 225165), (136, 211920), (160, 180132), (170, 169536), (192, 150110), (204, 141280), (240, 120088), (255, 113024), (272, 105960), (320, 90066), (340, 84768), (384, 75055), (408, 70640), (480, 60044), (510, 56512), (544, 52980), (640, 45033), (680, 42384), (816, 35320), (883, 32640), (960, 30022), (1020, 28256), (1088, 26490), (1360, 21192), (1632, 17660), (1766, 16320), (1920, 15011), (2040, 14128), (2176, 13245), (2649, 10880), (2720, 10596), (3264, 8830), (3532, 8160), (4080, 7064), (4415, 6528), (5298, 5440)]