219075760

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{88337}}^1$

素因数の和:88381

約数の個数: 40

約数和(自身を含む): 525787776

約数和(自身を除く): 306712016

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 88337, 176674, 353348, 441685, 706696, 883370, 1413392, 1766740, 2738447, 3533480, 5476894, 7066960, 10953788, 13692235, 21907576, 27384470, 43815152, 54768940, 109537880, 219075760]

約数ペア:

[(1, 219075760), (2, 109537880), (4, 54768940), (5, 43815152), (8, 27384470), (10, 21907576), (16, 13692235), (20, 10953788), (31, 7066960), (40, 5476894), (62, 3533480), (80, 2738447), (124, 1766740), (155, 1413392), (248, 883370), (310, 706696), (496, 441685), (620, 353348), (1240, 176674), (2480, 88337)]