19321990

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{397}}^1$

素因数の和:592

約数の個数: 32

約数和(自身を含む): 36221184

約数和(自身を除く): 16899194

約数列:

[1, 2, 5, 10, 31, 62, 155, 157, 310, 314, 397, 785, 794, 1570, 1985, 3970, 4867, 9734, 12307, 24335, 24614, 48670, 61535, 62329, 123070, 124658, 311645, 623290, 1932199, 3864398, 9660995, 19321990]

約数ペア:

[(1, 19321990), (2, 9660995), (5, 3864398), (10, 1932199), (31, 623290), (62, 311645), (155, 124658), (157, 123070), (310, 62329), (314, 61535), (397, 48670), (785, 24614), (794, 24335), (1570, 12307), (1985, 9734), (3970, 4867)]