8640720

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1091}}^1$

素因数の和:1121

約数の個数: 120

約数和(自身を含む): 31685472

約数和(自身を除く): 23044752

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 48, 55, 60, 66, 72, 80, 88, 90, 99, 110, 120, 132, 144, 165, 176, 180, 198, 220, 240, 264, 330, 360, 396, 440, 495, 528, 660, 720, 792, 880, 990, 1091, 1320, 1584, 1980, 2182, 2640, 3273, 3960, 4364, 5455, 6546, 7920, 8728, 9819, 10910, 12001, 13092, 16365, 17456, 19638, 21820, 24002, 26184, 32730, 36003, 39276, 43640, 48004, 49095, 52368, 60005, 65460, 72006, 78552, 87280, 96008, 98190, 108009, 120010, 130920, 144012, 157104, 180015, 192016, 196380, 216018, 240020, 261840, 288024, 360030, 392760, 432036, 480040, 540045, 576048, 720060, 785520, 864072, 960080, 1080090, 1440120, 1728144, 2160180, 2880240, 4320360, 8640720]

約数ペア:

[(1, 8640720), (2, 4320360), (3, 2880240), (4, 2160180), (5, 1728144), (6, 1440120), (8, 1080090), (9, 960080), (10, 864072), (11, 785520), (12, 720060), (15, 576048), (16, 540045), (18, 480040), (20, 432036), (22, 392760), (24, 360030), (30, 288024), (33, 261840), (36, 240020), (40, 216018), (44, 196380), (45, 192016), (48, 180015), (55, 157104), (60, 144012), (66, 130920), (72, 120010), (80, 108009), (88, 98190), (90, 96008), (99, 87280), (110, 78552), (120, 72006), (132, 65460), (144, 60005), (165, 52368), (176, 49095), (180, 48004), (198, 43640), (220, 39276), (240, 36003), (264, 32730), (330, 26184), (360, 24002), (396, 21820), (440, 19638), (495, 17456), (528, 16365), (660, 13092), (720, 12001), (792, 10910), (880, 9819), (990, 8728), (1091, 7920), (1320, 6546), (1584, 5455), (1980, 4364), (2182, 3960), (2640, 3273)]