19231120

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1$

素因数の和:212

約数の個数: 80

約数和(自身を含む): 47072880

約数和(自身を除く): 27841760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 73, 74, 80, 89, 146, 148, 178, 185, 292, 296, 356, 365, 370, 445, 584, 592, 712, 730, 740, 890, 1168, 1424, 1460, 1480, 1780, 2701, 2920, 2960, 3293, 3560, 5402, 5840, 6497, 6586, 7120, 10804, 12994, 13172, 13505, 16465, 21608, 25988, 26344, 27010, 32485, 32930, 43216, 51976, 52688, 54020, 64970, 65860, 103952, 108040, 129940, 131720, 216080, 240389, 259880, 263440, 480778, 519760, 961556, 1201945, 1923112, 2403890, 3846224, 4807780, 9615560, 19231120]

約数ペア:

[(1, 19231120), (2, 9615560), (4, 4807780), (5, 3846224), (8, 2403890), (10, 1923112), (16, 1201945), (20, 961556), (37, 519760), (40, 480778), (73, 263440), (74, 259880), (80, 240389), (89, 216080), (146, 131720), (148, 129940), (178, 108040), (185, 103952), (292, 65860), (296, 64970), (356, 54020), (365, 52688), (370, 51976), (445, 43216), (584, 32930), (592, 32485), (712, 27010), (730, 26344), (740, 25988), (890, 21608), (1168, 16465), (1424, 13505), (1460, 13172), (1480, 12994), (1780, 10804), (2701, 7120), (2920, 6586), (2960, 6497), (3293, 5840), (3560, 5402)]