1863990

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{149}}^1$

素因数の和:301

約数の個数: 48

約数和(自身を含む): 4914000

約数和(自身を除く): 3050010

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 139, 149, 278, 298, 417, 447, 695, 745, 834, 894, 1251, 1341, 1390, 1490, 2085, 2235, 2502, 2682, 4170, 4470, 6255, 6705, 12510, 13410, 20711, 41422, 62133, 103555, 124266, 186399, 207110, 310665, 372798, 621330, 931995, 1863990]

約数ペア:

[(1, 1863990), (2, 931995), (3, 621330), (5, 372798), (6, 310665), (9, 207110), (10, 186399), (15, 124266), (18, 103555), (30, 62133), (45, 41422), (90, 20711), (139, 13410), (149, 12510), (278, 6705), (298, 6255), (417, 4470), (447, 4170), (695, 2682), (745, 2502), (834, 2235), (894, 2085), (1251, 1490), (1341, 1390)]