642487680

素因数分解:

$2^7\times 3^3\times 5^1\times {\mathrm{37181}}^1$

素因数の和:37209

約数の個数: 128

約数和(自身を含む): 2275538400

約数和(自身を除く): 1633050720

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 90, 96, 108, 120, 128, 135, 144, 160, 180, 192, 216, 240, 270, 288, 320, 360, 384, 432, 480, 540, 576, 640, 720, 864, 960, 1080, 1152, 1440, 1728, 1920, 2160, 2880, 3456, 4320, 5760, 8640, 17280, 37181, 74362, 111543, 148724, 185905, 223086, 297448, 334629, 371810, 446172, 557715, 594896, 669258, 743620, 892344, 1003887, 1115430, 1189792, 1338516, 1487240, 1673145, 1784688, 2007774, 2230860, 2379584, 2677032, 2974480, 3346290, 3569376, 4015548, 4461720, 4759168, 5019435, 5354064, 5948960, 6692580, 7138752, 8031096, 8923440, 10038870, 10708128, 11897920, 13385160, 14277504, 16062192, 17846880, 20077740, 21416256, 23795840, 26770320, 32124384, 35693760, 40155480, 42832512, 53540640, 64248768, 71387520, 80310960, 107081280, 128497536, 160621920, 214162560, 321243840, 642487680]

約数ペア:

[(1, 642487680), (2, 321243840), (3, 214162560), (4, 160621920), (5, 128497536), (6, 107081280), (8, 80310960), (9, 71387520), (10, 64248768), (12, 53540640), (15, 42832512), (16, 40155480), (18, 35693760), (20, 32124384), (24, 26770320), (27, 23795840), (30, 21416256), (32, 20077740), (36, 17846880), (40, 16062192), (45, 14277504), (48, 13385160), (54, 11897920), (60, 10708128), (64, 10038870), (72, 8923440), (80, 8031096), (90, 7138752), (96, 6692580), (108, 5948960), (120, 5354064), (128, 5019435), (135, 4759168), (144, 4461720), (160, 4015548), (180, 3569376), (192, 3346290), (216, 2974480), (240, 2677032), (270, 2379584), (288, 2230860), (320, 2007774), (360, 1784688), (384, 1673145), (432, 1487240), (480, 1338516), (540, 1189792), (576, 1115430), (640, 1003887), (720, 892344), (864, 743620), (960, 669258), (1080, 594896), (1152, 557715), (1440, 446172), (1728, 371810), (1920, 334629), (2160, 297448), (2880, 223086), (3456, 185905), (4320, 148724), (5760, 111543), (8640, 74362), (17280, 37181)]