172919940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{191}}^2$

素因数の和:473

約数の個数: 72

約数和(自身を含む): 492885120

約数和(自身を除く): 319965180

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 79, 158, 191, 237, 316, 382, 395, 474, 573, 764, 790, 948, 955, 1146, 1185, 1580, 1910, 2292, 2370, 2865, 3820, 4740, 5730, 11460, 15089, 30178, 36481, 45267, 60356, 72962, 75445, 90534, 109443, 145924, 150890, 181068, 182405, 218886, 226335, 301780, 364810, 437772, 452670, 547215, 729620, 905340, 1094430, 2188860, 2881999, 5763998, 8645997, 11527996, 14409995, 17291994, 28819990, 34583988, 43229985, 57639980, 86459970, 172919940]

約数ペア:

[(1, 172919940), (2, 86459970), (3, 57639980), (4, 43229985), (5, 34583988), (6, 28819990), (10, 17291994), (12, 14409995), (15, 11527996), (20, 8645997), (30, 5763998), (60, 2881999), (79, 2188860), (158, 1094430), (191, 905340), (237, 729620), (316, 547215), (382, 452670), (395, 437772), (474, 364810), (573, 301780), (764, 226335), (790, 218886), (948, 182405), (955, 181068), (1146, 150890), (1185, 145924), (1580, 109443), (1910, 90534), (2292, 75445), (2370, 72962), (2865, 60356), (3820, 45267), (4740, 36481), (5730, 30178), (11460, 15089)]