268752640

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{521}}^1$

素因数の和:586

約数の個数: 144

約数和(自身を含む): 717002496

約数和(自身を除く): 448249856

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 64, 65, 80, 104, 124, 128, 130, 155, 160, 208, 248, 256, 260, 310, 320, 403, 416, 496, 520, 521, 620, 640, 806, 832, 992, 1040, 1042, 1240, 1280, 1612, 1664, 1984, 2015, 2080, 2084, 2480, 2605, 3224, 3328, 3968, 4030, 4160, 4168, 4960, 5210, 6448, 6773, 7936, 8060, 8320, 8336, 9920, 10420, 12896, 13546, 16120, 16151, 16640, 16672, 19840, 20840, 25792, 27092, 32240, 32302, 33344, 33865, 39680, 41680, 51584, 54184, 64480, 64604, 66688, 67730, 80755, 83360, 103168, 108368, 128960, 129208, 133376, 135460, 161510, 166720, 209963, 216736, 257920, 258416, 270920, 323020, 333440, 419926, 433472, 515840, 516832, 541840, 646040, 666880, 839852, 866944, 1033664, 1049815, 1083680, 1292080, 1679704, 1733888, 2067328, 2099630, 2167360, 2584160, 3359408, 4134656, 4199260, 4334720, 5168320, 6718816, 8398520, 8669440, 10336640, 13437632, 16797040, 20673280, 26875264, 33594080, 53750528, 67188160, 134376320, 268752640]

約数ペア:

[(1, 268752640), (2, 134376320), (4, 67188160), (5, 53750528), (8, 33594080), (10, 26875264), (13, 20673280), (16, 16797040), (20, 13437632), (26, 10336640), (31, 8669440), (32, 8398520), (40, 6718816), (52, 5168320), (62, 4334720), (64, 4199260), (65, 4134656), (80, 3359408), (104, 2584160), (124, 2167360), (128, 2099630), (130, 2067328), (155, 1733888), (160, 1679704), (208, 1292080), (248, 1083680), (256, 1049815), (260, 1033664), (310, 866944), (320, 839852), (403, 666880), (416, 646040), (496, 541840), (520, 516832), (521, 515840), (620, 433472), (640, 419926), (806, 333440), (832, 323020), (992, 270920), (1040, 258416), (1042, 257920), (1240, 216736), (1280, 209963), (1612, 166720), (1664, 161510), (1984, 135460), (2015, 133376), (2080, 129208), (2084, 128960), (2480, 108368), (2605, 103168), (3224, 83360), (3328, 80755), (3968, 67730), (4030, 66688), (4160, 64604), (4168, 64480), (4960, 54184), (5210, 51584), (6448, 41680), (6773, 39680), (7936, 33865), (8060, 33344), (8320, 32302), (8336, 32240), (9920, 27092), (10420, 25792), (12896, 20840), (13546, 19840), (16120, 16672), (16151, 16640)]