129808640

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{269}}^1$

素因数の和:332

約数の個数: 144

約数和(自身を含む): 347684400

約数和(自身を除く): 217875760

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 29, 32, 40, 52, 58, 64, 65, 80, 104, 116, 128, 130, 145, 160, 208, 232, 256, 260, 269, 290, 320, 377, 416, 464, 520, 538, 580, 640, 754, 832, 928, 1040, 1076, 1160, 1280, 1345, 1508, 1664, 1856, 1885, 2080, 2152, 2320, 2690, 3016, 3328, 3497, 3712, 3770, 4160, 4304, 4640, 5380, 6032, 6994, 7424, 7540, 7801, 8320, 8608, 9280, 10760, 12064, 13988, 15080, 15602, 16640, 17216, 17485, 18560, 21520, 24128, 27976, 30160, 31204, 34432, 34970, 37120, 39005, 43040, 48256, 55952, 60320, 62408, 68864, 69940, 78010, 86080, 96512, 101413, 111904, 120640, 124816, 139880, 156020, 172160, 202826, 223808, 241280, 249632, 279760, 312040, 344320, 405652, 447616, 482560, 499264, 507065, 559520, 624080, 811304, 895232, 998528, 1014130, 1119040, 1248160, 1622608, 1997056, 2028260, 2238080, 2496320, 3245216, 4056520, 4476160, 4992640, 6490432, 8113040, 9985280, 12980864, 16226080, 25961728, 32452160, 64904320, 129808640]

約数ペア:

[(1, 129808640), (2, 64904320), (4, 32452160), (5, 25961728), (8, 16226080), (10, 12980864), (13, 9985280), (16, 8113040), (20, 6490432), (26, 4992640), (29, 4476160), (32, 4056520), (40, 3245216), (52, 2496320), (58, 2238080), (64, 2028260), (65, 1997056), (80, 1622608), (104, 1248160), (116, 1119040), (128, 1014130), (130, 998528), (145, 895232), (160, 811304), (208, 624080), (232, 559520), (256, 507065), (260, 499264), (269, 482560), (290, 447616), (320, 405652), (377, 344320), (416, 312040), (464, 279760), (520, 249632), (538, 241280), (580, 223808), (640, 202826), (754, 172160), (832, 156020), (928, 139880), (1040, 124816), (1076, 120640), (1160, 111904), (1280, 101413), (1345, 96512), (1508, 86080), (1664, 78010), (1856, 69940), (1885, 68864), (2080, 62408), (2152, 60320), (2320, 55952), (2690, 48256), (3016, 43040), (3328, 39005), (3497, 37120), (3712, 34970), (3770, 34432), (4160, 31204), (4304, 30160), (4640, 27976), (5380, 24128), (6032, 21520), (6994, 18560), (7424, 17485), (7540, 17216), (7801, 16640), (8320, 15602), (8608, 15080), (9280, 13988), (10760, 12064)]