18365440

素因数分解:

$2^{10}\times 5^1\times {\mathrm{17}}^1\times {\mathrm{211}}^1$

素因数の和:253

約数の個数: 88

約数和(自身を含む): 46868112

約数和(自身を除く): 28502672

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 160, 170, 211, 256, 272, 320, 340, 422, 512, 544, 640, 680, 844, 1024, 1055, 1088, 1280, 1360, 1688, 2110, 2176, 2560, 2720, 3376, 3587, 4220, 4352, 5120, 5440, 6752, 7174, 8440, 8704, 10880, 13504, 14348, 16880, 17408, 17935, 21760, 27008, 28696, 33760, 35870, 43520, 54016, 57392, 67520, 71740, 87040, 108032, 114784, 135040, 143480, 216064, 229568, 270080, 286960, 459136, 540160, 573920, 918272, 1080320, 1147840, 1836544, 2295680, 3673088, 4591360, 9182720, 18365440]

約数ペア:

[(1, 18365440), (2, 9182720), (4, 4591360), (5, 3673088), (8, 2295680), (10, 1836544), (16, 1147840), (17, 1080320), (20, 918272), (32, 573920), (34, 540160), (40, 459136), (64, 286960), (68, 270080), (80, 229568), (85, 216064), (128, 143480), (136, 135040), (160, 114784), (170, 108032), (211, 87040), (256, 71740), (272, 67520), (320, 57392), (340, 54016), (422, 43520), (512, 35870), (544, 33760), (640, 28696), (680, 27008), (844, 21760), (1024, 17935), (1055, 17408), (1088, 16880), (1280, 14348), (1360, 13504), (1688, 10880), (2110, 8704), (2176, 8440), (2560, 7174), (2720, 6752), (3376, 5440), (3587, 5120), (4220, 4352)]