72043720

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{59}}^1\times {\mathrm{89}}^1$

素因数の和:180

約数の個数: 128

約数和(自身を含む): 194400000

約数和(自身を除く): 122356280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 59, 70, 89, 98, 118, 140, 178, 196, 236, 245, 280, 295, 343, 356, 392, 413, 445, 472, 490, 590, 623, 686, 712, 826, 890, 980, 1180, 1246, 1372, 1652, 1715, 1780, 1960, 2065, 2360, 2492, 2744, 2891, 3115, 3304, 3430, 3560, 4130, 4361, 4984, 5251, 5782, 6230, 6860, 8260, 8722, 10502, 11564, 12460, 13720, 14455, 16520, 17444, 20237, 21004, 21805, 23128, 24920, 26255, 28910, 30527, 34888, 36757, 40474, 42008, 43610, 52510, 57820, 61054, 73514, 80948, 87220, 101185, 105020, 115640, 122108, 147028, 152635, 161896, 174440, 183785, 202370, 210040, 244216, 257299, 294056, 305270, 367570, 404740, 514598, 610540, 735140, 809480, 1029196, 1221080, 1286495, 1470280, 1801093, 2058392, 2572990, 3602186, 5145980, 7204372, 9005465, 10291960, 14408744, 18010930, 36021860, 72043720]

約数ペア:

[(1, 72043720), (2, 36021860), (4, 18010930), (5, 14408744), (7, 10291960), (8, 9005465), (10, 7204372), (14, 5145980), (20, 3602186), (28, 2572990), (35, 2058392), (40, 1801093), (49, 1470280), (56, 1286495), (59, 1221080), (70, 1029196), (89, 809480), (98, 735140), (118, 610540), (140, 514598), (178, 404740), (196, 367570), (236, 305270), (245, 294056), (280, 257299), (295, 244216), (343, 210040), (356, 202370), (392, 183785), (413, 174440), (445, 161896), (472, 152635), (490, 147028), (590, 122108), (623, 115640), (686, 105020), (712, 101185), (826, 87220), (890, 80948), (980, 73514), (1180, 61054), (1246, 57820), (1372, 52510), (1652, 43610), (1715, 42008), (1780, 40474), (1960, 36757), (2065, 34888), (2360, 30527), (2492, 28910), (2744, 26255), (2891, 24920), (3115, 23128), (3304, 21805), (3430, 21004), (3560, 20237), (4130, 17444), (4361, 16520), (4984, 14455), (5251, 13720), (5782, 12460), (6230, 11564), (6860, 10502), (8260, 8722)]