19749840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{7481}}^1$

素因数の和:7508

約数の個数: 80

約数和(自身を含む): 66799296

約数和(自身を除く): 47049456

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 33, 40, 44, 48, 55, 60, 66, 80, 88, 110, 120, 132, 165, 176, 220, 240, 264, 330, 440, 528, 660, 880, 1320, 2640, 7481, 14962, 22443, 29924, 37405, 44886, 59848, 74810, 82291, 89772, 112215, 119696, 149620, 164582, 179544, 224430, 246873, 299240, 329164, 359088, 411455, 448860, 493746, 598480, 658328, 822910, 897720, 987492, 1234365, 1316656, 1645820, 1795440, 1974984, 2468730, 3291640, 3949968, 4937460, 6583280, 9874920, 19749840]

約数ペア:

[(1, 19749840), (2, 9874920), (3, 6583280), (4, 4937460), (5, 3949968), (6, 3291640), (8, 2468730), (10, 1974984), (11, 1795440), (12, 1645820), (15, 1316656), (16, 1234365), (20, 987492), (22, 897720), (24, 822910), (30, 658328), (33, 598480), (40, 493746), (44, 448860), (48, 411455), (55, 359088), (60, 329164), (66, 299240), (80, 246873), (88, 224430), (110, 179544), (120, 164582), (132, 149620), (165, 119696), (176, 112215), (220, 89772), (240, 82291), (264, 74810), (330, 59848), (440, 44886), (528, 37405), (660, 29924), (880, 22443), (1320, 14962), (2640, 7481)]