122732780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{89}}^1\times {\mathrm{191}}^1$

素因数の和:327

約数の個数: 72

約数和(自身を含む): 276514560

約数和(自身を除く): 153781780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 89, 95, 178, 190, 191, 356, 361, 380, 382, 445, 722, 764, 890, 955, 1444, 1691, 1780, 1805, 1910, 3382, 3610, 3629, 3820, 6764, 7220, 7258, 8455, 14516, 16910, 16999, 18145, 32129, 33820, 33998, 36290, 64258, 67996, 68951, 72580, 84995, 128516, 137902, 160645, 169990, 275804, 321290, 322981, 339980, 344755, 642580, 645962, 689510, 1291924, 1379020, 1614905, 3229810, 6136639, 6459620, 12273278, 24546556, 30683195, 61366390, 122732780]

約数ペア:

[(1, 122732780), (2, 61366390), (4, 30683195), (5, 24546556), (10, 12273278), (19, 6459620), (20, 6136639), (38, 3229810), (76, 1614905), (89, 1379020), (95, 1291924), (178, 689510), (190, 645962), (191, 642580), (356, 344755), (361, 339980), (380, 322981), (382, 321290), (445, 275804), (722, 169990), (764, 160645), (890, 137902), (955, 128516), (1444, 84995), (1691, 72580), (1780, 68951), (1805, 67996), (1910, 64258), (3382, 36290), (3610, 33998), (3629, 33820), (3820, 32129), (6764, 18145), (7220, 16999), (7258, 16910), (8455, 14516)]