2804020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{157}}^1$

素因数の和:232

約数の個数: 48

約数和(自身を含む): 6370560

約数和(自身を除く): 3566540

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 47, 76, 94, 95, 157, 188, 190, 235, 314, 380, 470, 628, 785, 893, 940, 1570, 1786, 2983, 3140, 3572, 4465, 5966, 7379, 8930, 11932, 14758, 14915, 17860, 29516, 29830, 36895, 59660, 73790, 140201, 147580, 280402, 560804, 701005, 1402010, 2804020]

約数ペア:

[(1, 2804020), (2, 1402010), (4, 701005), (5, 560804), (10, 280402), (19, 147580), (20, 140201), (38, 73790), (47, 59660), (76, 36895), (94, 29830), (95, 29516), (157, 17860), (188, 14915), (190, 14758), (235, 11932), (314, 8930), (380, 7379), (470, 5966), (628, 4465), (785, 3572), (893, 3140), (940, 2983), (1570, 1786)]