1281228

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{191}}^1$

素因数の和:254

約数の個数: 48

約数和(自身を含む): 3311616

約数和(自身を除く): 2030388

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 43, 52, 78, 86, 129, 156, 172, 191, 258, 382, 516, 559, 573, 764, 1118, 1146, 1677, 2236, 2292, 2483, 3354, 4966, 6708, 7449, 8213, 9932, 14898, 16426, 24639, 29796, 32852, 49278, 98556, 106769, 213538, 320307, 427076, 640614, 1281228]

約数ペア:

[(1, 1281228), (2, 640614), (3, 427076), (4, 320307), (6, 213538), (12, 106769), (13, 98556), (26, 49278), (39, 32852), (43, 29796), (52, 24639), (78, 16426), (86, 14898), (129, 9932), (156, 8213), (172, 7449), (191, 6708), (258, 4966), (382, 3354), (516, 2483), (559, 2292), (573, 2236), (764, 1677), (1118, 1146)]