890221330

素因数分解:

$2^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{197}}^1\times {\mathrm{3251}}^1$

素因数の和:3594

約数の個数: 32

約数和(自身を含む): 1622617920

約数和(自身を除く): 732396590

約数列:

[1, 2, 5, 10, 139, 197, 278, 394, 695, 985, 1390, 1970, 3251, 6502, 16255, 27383, 32510, 54766, 136915, 273830, 451889, 640447, 903778, 1280894, 2259445, 3202235, 4518890, 6404470, 89022133, 178044266, 445110665, 890221330]

約数ペア:

[(1, 890221330), (2, 445110665), (5, 178044266), (10, 89022133), (139, 6404470), (197, 4518890), (278, 3202235), (394, 2259445), (695, 1280894), (985, 903778), (1390, 640447), (1970, 451889), (3251, 273830), (6502, 136915), (16255, 54766), (27383, 32510)]