1555840

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1$

素因数の和:60

約数の個数: 128

約数和(自身を含む): 4626720

約数和(自身を除く): 3070880

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 17, 20, 22, 26, 32, 34, 40, 44, 52, 55, 64, 65, 68, 80, 85, 88, 104, 110, 128, 130, 136, 143, 160, 170, 176, 187, 208, 220, 221, 260, 272, 286, 320, 340, 352, 374, 416, 440, 442, 520, 544, 572, 640, 680, 704, 715, 748, 832, 880, 884, 935, 1040, 1088, 1105, 1144, 1360, 1408, 1430, 1496, 1664, 1760, 1768, 1870, 2080, 2176, 2210, 2288, 2431, 2720, 2860, 2992, 3520, 3536, 3740, 4160, 4420, 4576, 4862, 5440, 5720, 5984, 7040, 7072, 7480, 8320, 8840, 9152, 9724, 10880, 11440, 11968, 12155, 14144, 14960, 17680, 18304, 19448, 22880, 23936, 24310, 28288, 29920, 35360, 38896, 45760, 48620, 59840, 70720, 77792, 91520, 97240, 119680, 141440, 155584, 194480, 311168, 388960, 777920, 1555840]

約数ペア:

[(1, 1555840), (2, 777920), (4, 388960), (5, 311168), (8, 194480), (10, 155584), (11, 141440), (13, 119680), (16, 97240), (17, 91520), (20, 77792), (22, 70720), (26, 59840), (32, 48620), (34, 45760), (40, 38896), (44, 35360), (52, 29920), (55, 28288), (64, 24310), (65, 23936), (68, 22880), (80, 19448), (85, 18304), (88, 17680), (104, 14960), (110, 14144), (128, 12155), (130, 11968), (136, 11440), (143, 10880), (160, 9724), (170, 9152), (176, 8840), (187, 8320), (208, 7480), (220, 7072), (221, 7040), (260, 5984), (272, 5720), (286, 5440), (320, 4862), (340, 4576), (352, 4420), (374, 4160), (416, 3740), (440, 3536), (442, 3520), (520, 2992), (544, 2860), (572, 2720), (640, 2431), (680, 2288), (704, 2210), (715, 2176), (748, 2080), (832, 1870), (880, 1768), (884, 1760), (935, 1664), (1040, 1496), (1088, 1430), (1105, 1408), (1144, 1360)]