19815420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{173}}^1$

素因数の和:291

約数の個数: 96

約数和(自身を含む): 58931712

約数和(自身を除く): 39116292

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 83, 92, 115, 138, 166, 173, 230, 249, 276, 332, 345, 346, 415, 460, 498, 519, 690, 692, 830, 865, 996, 1038, 1245, 1380, 1660, 1730, 1909, 2076, 2490, 2595, 3460, 3818, 3979, 4980, 5190, 5727, 7636, 7958, 9545, 10380, 11454, 11937, 14359, 15916, 19090, 19895, 22908, 23874, 28635, 28718, 38180, 39790, 43077, 47748, 57270, 57436, 59685, 71795, 79580, 86154, 114540, 119370, 143590, 172308, 215385, 238740, 287180, 330257, 430770, 660514, 861540, 990771, 1321028, 1651285, 1981542, 3302570, 3963084, 4953855, 6605140, 9907710, 19815420]

約数ペア:

[(1, 19815420), (2, 9907710), (3, 6605140), (4, 4953855), (5, 3963084), (6, 3302570), (10, 1981542), (12, 1651285), (15, 1321028), (20, 990771), (23, 861540), (30, 660514), (46, 430770), (60, 330257), (69, 287180), (83, 238740), (92, 215385), (115, 172308), (138, 143590), (166, 119370), (173, 114540), (230, 86154), (249, 79580), (276, 71795), (332, 59685), (345, 57436), (346, 57270), (415, 47748), (460, 43077), (498, 39790), (519, 38180), (690, 28718), (692, 28635), (830, 23874), (865, 22908), (996, 19895), (1038, 19090), (1245, 15916), (1380, 14359), (1660, 11937), (1730, 11454), (1909, 10380), (2076, 9545), (2490, 7958), (2595, 7636), (3460, 5727), (3818, 5190), (3979, 4980)]