19928940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{191}}^1$

素因数の和:287

約数の個数: 96

約数和(自身を含む): 58834944

約数和(自身を除く): 38906004

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 37, 47, 60, 74, 94, 111, 141, 148, 185, 188, 191, 222, 235, 282, 370, 382, 444, 470, 555, 564, 573, 705, 740, 764, 940, 955, 1110, 1146, 1410, 1739, 1910, 2220, 2292, 2820, 2865, 3478, 3820, 5217, 5730, 6956, 7067, 8695, 8977, 10434, 11460, 14134, 17390, 17954, 20868, 21201, 26085, 26931, 28268, 34780, 35335, 35908, 42402, 44885, 52170, 53862, 70670, 84804, 89770, 104340, 106005, 107724, 134655, 141340, 179540, 212010, 269310, 332149, 424020, 538620, 664298, 996447, 1328596, 1660745, 1992894, 3321490, 3985788, 4982235, 6642980, 9964470, 19928940]

約数ペア:

[(1, 19928940), (2, 9964470), (3, 6642980), (4, 4982235), (5, 3985788), (6, 3321490), (10, 1992894), (12, 1660745), (15, 1328596), (20, 996447), (30, 664298), (37, 538620), (47, 424020), (60, 332149), (74, 269310), (94, 212010), (111, 179540), (141, 141340), (148, 134655), (185, 107724), (188, 106005), (191, 104340), (222, 89770), (235, 84804), (282, 70670), (370, 53862), (382, 52170), (444, 44885), (470, 42402), (555, 35908), (564, 35335), (573, 34780), (705, 28268), (740, 26931), (764, 26085), (940, 21201), (955, 20868), (1110, 17954), (1146, 17390), (1410, 14134), (1739, 11460), (1910, 10434), (2220, 8977), (2292, 8695), (2820, 7067), (2865, 6956), (3478, 5730), (3820, 5217)]