19993450

素因数分解:

$2^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{12899}}^1$

素因数の和:12942

約数の個数: 24

約数和(自身を含む): 38390400

約数和(自身を除く): 18396950

約数列:

[1, 2, 5, 10, 25, 31, 50, 62, 155, 310, 775, 1550, 12899, 25798, 64495, 128990, 322475, 399869, 644950, 799738, 1999345, 3998690, 9996725, 19993450]

約数ペア:

[(1, 19993450), (2, 9996725), (5, 3998690), (10, 1999345), (25, 799738), (31, 644950), (50, 399869), (62, 322475), (155, 128990), (310, 64495), (775, 25798), (1550, 12899)]