1814920

素因数分解:

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

素因数の和:202

約数の個数: 48

約数和(自身を含む): 4365540

約数和(自身を除く): 2550620

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 157, 170, 289, 314, 340, 578, 628, 680, 785, 1156, 1256, 1445, 1570, 2312, 2669, 2890, 3140, 5338, 5780, 6280, 10676, 11560, 13345, 21352, 26690, 45373, 53380, 90746, 106760, 181492, 226865, 362984, 453730, 907460, 1814920]

約数ペア:

[(1, 1814920), (2, 907460), (4, 453730), (5, 362984), (8, 226865), (10, 181492), (17, 106760), (20, 90746), (34, 53380), (40, 45373), (68, 26690), (85, 21352), (136, 13345), (157, 11560), (170, 10676), (289, 6280), (314, 5780), (340, 5338), (578, 3140), (628, 2890), (680, 2669), (785, 2312), (1156, 1570), (1256, 1445)]