290408068

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{311}}^1$

素因数の和:508

約数の個数: 48

約数和(自身を含む): 536215680

約数和(自身を除く): 245807612

約数列:

[1, 2, 4, 43, 61, 86, 89, 122, 172, 178, 244, 311, 356, 622, 1244, 2623, 3827, 5246, 5429, 7654, 10492, 10858, 13373, 15308, 18971, 21716, 26746, 27679, 37942, 53492, 55358, 75884, 110716, 233447, 466894, 815753, 933788, 1190197, 1631506, 1688419, 2380394, 3263012, 3376838, 4760788, 6753676, 72602017, 145204034, 290408068]

約数ペア:

[(1, 290408068), (2, 145204034), (4, 72602017), (43, 6753676), (61, 4760788), (86, 3376838), (89, 3263012), (122, 2380394), (172, 1688419), (178, 1631506), (244, 1190197), (311, 933788), (356, 815753), (622, 466894), (1244, 233447), (2623, 110716), (3827, 75884), (5246, 55358), (5429, 53492), (7654, 37942), (10492, 27679), (10858, 26746), (13373, 21716), (15308, 18971)]