2028440

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1$

素因数の和:204

約数の個数: 64

約数和(自身を含む): 5119200

約数和(自身を除く): 3090760

約数列:

[1, 2, 4, 5, 8, 10, 17, 19, 20, 34, 38, 40, 68, 76, 85, 95, 136, 152, 157, 170, 190, 314, 323, 340, 380, 628, 646, 680, 760, 785, 1256, 1292, 1570, 1615, 2584, 2669, 2983, 3140, 3230, 5338, 5966, 6280, 6460, 10676, 11932, 12920, 13345, 14915, 21352, 23864, 26690, 29830, 50711, 53380, 59660, 101422, 106760, 119320, 202844, 253555, 405688, 507110, 1014220, 2028440]

約数ペア:

[(1, 2028440), (2, 1014220), (4, 507110), (5, 405688), (8, 253555), (10, 202844), (17, 119320), (19, 106760), (20, 101422), (34, 59660), (38, 53380), (40, 50711), (68, 29830), (76, 26690), (85, 23864), (95, 21352), (136, 14915), (152, 13345), (157, 12920), (170, 11932), (190, 10676), (314, 6460), (323, 6280), (340, 5966), (380, 5338), (628, 3230), (646, 3140), (680, 2983), (760, 2669), (785, 2584), (1256, 1615), (1292, 1570)]