21602080

素因数分解:

$2^5\times 5^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1$

素因数の和:182

約数の個数: 96

約数和(自身を含む): 54295920

約数和(自身を除く): 32693840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 37, 40, 41, 74, 80, 82, 89, 148, 160, 164, 178, 185, 205, 296, 328, 356, 370, 410, 445, 592, 656, 712, 740, 820, 890, 1184, 1312, 1424, 1480, 1517, 1640, 1780, 2848, 2960, 3034, 3280, 3293, 3560, 3649, 5920, 6068, 6560, 6586, 7120, 7298, 7585, 12136, 13172, 14240, 14596, 15170, 16465, 18245, 24272, 26344, 29192, 30340, 32930, 36490, 48544, 52688, 58384, 60680, 65860, 72980, 105376, 116768, 121360, 131720, 135013, 145960, 242720, 263440, 270026, 291920, 526880, 540052, 583840, 675065, 1080104, 1350130, 2160208, 2700260, 4320416, 5400520, 10801040, 21602080]

約数ペア:

[(1, 21602080), (2, 10801040), (4, 5400520), (5, 4320416), (8, 2700260), (10, 2160208), (16, 1350130), (20, 1080104), (32, 675065), (37, 583840), (40, 540052), (41, 526880), (74, 291920), (80, 270026), (82, 263440), (89, 242720), (148, 145960), (160, 135013), (164, 131720), (178, 121360), (185, 116768), (205, 105376), (296, 72980), (328, 65860), (356, 60680), (370, 58384), (410, 52688), (445, 48544), (592, 36490), (656, 32930), (712, 30340), (740, 29192), (820, 26344), (890, 24272), (1184, 18245), (1312, 16465), (1424, 15170), (1480, 14596), (1517, 14240), (1640, 13172), (1780, 12136), (2848, 7585), (2960, 7298), (3034, 7120), (3280, 6586), (3293, 6560), (3560, 6068), (3649, 5920)]