2478780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{293}}^1$

素因数の和:355

約数の個数: 72

約数和(自身を含む): 7705152

約数和(自身を除く): 5226372

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 47, 60, 90, 94, 141, 180, 188, 235, 282, 293, 423, 470, 564, 586, 705, 846, 879, 940, 1172, 1410, 1465, 1692, 1758, 2115, 2637, 2820, 2930, 3516, 4230, 4395, 5274, 5860, 8460, 8790, 10548, 13185, 13771, 17580, 26370, 27542, 41313, 52740, 55084, 68855, 82626, 123939, 137710, 165252, 206565, 247878, 275420, 413130, 495756, 619695, 826260, 1239390, 2478780]

約数ペア:

[(1, 2478780), (2, 1239390), (3, 826260), (4, 619695), (5, 495756), (6, 413130), (9, 275420), (10, 247878), (12, 206565), (15, 165252), (18, 137710), (20, 123939), (30, 82626), (36, 68855), (45, 55084), (47, 52740), (60, 41313), (90, 27542), (94, 26370), (141, 17580), (180, 13771), (188, 13185), (235, 10548), (282, 8790), (293, 8460), (423, 5860), (470, 5274), (564, 4395), (586, 4230), (705, 3516), (846, 2930), (879, 2820), (940, 2637), (1172, 2115), (1410, 1758), (1465, 1692)]