19925560

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{16069}}^1$

素因数の和:16111

約数の個数: 32

約数和(自身を含む): 46281600

約数和(自身を除く): 26356040

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 16069, 32138, 64276, 80345, 128552, 160690, 321380, 498139, 642760, 996278, 1992556, 2490695, 3985112, 4981390, 9962780, 19925560]

約数ペア:

[(1, 19925560), (2, 9962780), (4, 4981390), (5, 3985112), (8, 2490695), (10, 1992556), (20, 996278), (31, 642760), (40, 498139), (62, 321380), (124, 160690), (155, 128552), (248, 80345), (310, 64276), (620, 32138), (1240, 16069)]