409972160

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{709}}^1$

素因数の和:878

約数の個数: 112

約数和(自身を含む): 1060399200

約数和(自身を除く): 650427040

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 139, 160, 208, 260, 278, 320, 416, 520, 556, 695, 709, 832, 1040, 1112, 1390, 1418, 1807, 2080, 2224, 2780, 2836, 3545, 3614, 4160, 4448, 5560, 5672, 7090, 7228, 8896, 9035, 9217, 11120, 11344, 14180, 14456, 18070, 18434, 22240, 22688, 28360, 28912, 36140, 36868, 44480, 45376, 46085, 56720, 57824, 72280, 73736, 92170, 98551, 113440, 115648, 144560, 147472, 184340, 197102, 226880, 289120, 294944, 368680, 394204, 492755, 578240, 589888, 737360, 788408, 985510, 1281163, 1474720, 1576816, 1971020, 2562326, 2949440, 3153632, 3942040, 5124652, 6307264, 6405815, 7884080, 10249304, 12811630, 15768160, 20498608, 25623260, 31536320, 40997216, 51246520, 81994432, 102493040, 204986080, 409972160]

約数ペア:

[(1, 409972160), (2, 204986080), (4, 102493040), (5, 81994432), (8, 51246520), (10, 40997216), (13, 31536320), (16, 25623260), (20, 20498608), (26, 15768160), (32, 12811630), (40, 10249304), (52, 7884080), (64, 6405815), (65, 6307264), (80, 5124652), (104, 3942040), (130, 3153632), (139, 2949440), (160, 2562326), (208, 1971020), (260, 1576816), (278, 1474720), (320, 1281163), (416, 985510), (520, 788408), (556, 737360), (695, 589888), (709, 578240), (832, 492755), (1040, 394204), (1112, 368680), (1390, 294944), (1418, 289120), (1807, 226880), (2080, 197102), (2224, 184340), (2780, 147472), (2836, 144560), (3545, 115648), (3614, 113440), (4160, 98551), (4448, 92170), (5560, 73736), (5672, 72280), (7090, 57824), (7228, 56720), (8896, 46085), (9035, 45376), (9217, 44480), (11120, 36868), (11344, 36140), (14180, 28912), (14456, 28360), (18070, 22688), (18434, 22240)]