1228540

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1$

素因数の和:142

約数の個数: 48

約数和(自身を含む): 2812320

約数和(自身を除く): 1583780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 53, 61, 76, 95, 106, 122, 190, 212, 244, 265, 305, 380, 530, 610, 1007, 1060, 1159, 1220, 2014, 2318, 3233, 4028, 4636, 5035, 5795, 6466, 10070, 11590, 12932, 16165, 20140, 23180, 32330, 61427, 64660, 122854, 245708, 307135, 614270, 1228540]

約数ペア:

[(1, 1228540), (2, 614270), (4, 307135), (5, 245708), (10, 122854), (19, 64660), (20, 61427), (38, 32330), (53, 23180), (61, 20140), (76, 16165), (95, 12932), (106, 11590), (122, 10070), (190, 6466), (212, 5795), (244, 5035), (265, 4636), (305, 4028), (380, 3233), (530, 2318), (610, 2014), (1007, 1220), (1060, 1159)]