40817920

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{223}}^1$

素因数の和:268

約数の個数: 144

約数和(自身を含む): 115379712

約数和(自身を除く): 74561792

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 32, 40, 44, 52, 55, 64, 65, 80, 88, 104, 110, 128, 130, 143, 160, 176, 208, 220, 223, 256, 260, 286, 320, 352, 416, 440, 446, 520, 572, 640, 704, 715, 832, 880, 892, 1040, 1115, 1144, 1280, 1408, 1430, 1664, 1760, 1784, 2080, 2230, 2288, 2453, 2816, 2860, 2899, 3328, 3520, 3568, 4160, 4460, 4576, 4906, 5720, 5798, 7040, 7136, 8320, 8920, 9152, 9812, 11440, 11596, 12265, 14080, 14272, 14495, 16640, 17840, 18304, 19624, 22880, 23192, 24530, 28544, 28990, 31889, 35680, 36608, 39248, 45760, 46384, 49060, 57088, 57980, 63778, 71360, 78496, 91520, 92768, 98120, 115960, 127556, 142720, 156992, 159445, 183040, 185536, 196240, 231920, 255112, 285440, 313984, 318890, 371072, 392480, 463840, 510224, 627968, 637780, 742144, 784960, 927680, 1020448, 1275560, 1569920, 1855360, 2040896, 2551120, 3139840, 3710720, 4081792, 5102240, 8163584, 10204480, 20408960, 40817920]

約数ペア:

[(1, 40817920), (2, 20408960), (4, 10204480), (5, 8163584), (8, 5102240), (10, 4081792), (11, 3710720), (13, 3139840), (16, 2551120), (20, 2040896), (22, 1855360), (26, 1569920), (32, 1275560), (40, 1020448), (44, 927680), (52, 784960), (55, 742144), (64, 637780), (65, 627968), (80, 510224), (88, 463840), (104, 392480), (110, 371072), (128, 318890), (130, 313984), (143, 285440), (160, 255112), (176, 231920), (208, 196240), (220, 185536), (223, 183040), (256, 159445), (260, 156992), (286, 142720), (320, 127556), (352, 115960), (416, 98120), (440, 92768), (446, 91520), (520, 78496), (572, 71360), (640, 63778), (704, 57980), (715, 57088), (832, 49060), (880, 46384), (892, 45760), (1040, 39248), (1115, 36608), (1144, 35680), (1280, 31889), (1408, 28990), (1430, 28544), (1664, 24530), (1760, 23192), (1784, 22880), (2080, 19624), (2230, 18304), (2288, 17840), (2453, 16640), (2816, 14495), (2860, 14272), (2899, 14080), (3328, 12265), (3520, 11596), (3568, 11440), (4160, 9812), (4460, 9152), (4576, 8920), (4906, 8320), (5720, 7136), (5798, 7040)]