31958920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{727}}^1$

素因数の和:902

約数の個数: 64

約数和(自身を含む): 82817280

約数和(自身を除く): 50858360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 157, 280, 314, 628, 727, 785, 1099, 1256, 1454, 1570, 2198, 2908, 3140, 3635, 4396, 5089, 5495, 5816, 6280, 7270, 8792, 10178, 10990, 14540, 20356, 21980, 25445, 29080, 40712, 43960, 50890, 101780, 114139, 203560, 228278, 456556, 570695, 798973, 913112, 1141390, 1597946, 2282780, 3195892, 3994865, 4565560, 6391784, 7989730, 15979460, 31958920]

約数ペア:

[(1, 31958920), (2, 15979460), (4, 7989730), (5, 6391784), (7, 4565560), (8, 3994865), (10, 3195892), (14, 2282780), (20, 1597946), (28, 1141390), (35, 913112), (40, 798973), (56, 570695), (70, 456556), (140, 228278), (157, 203560), (280, 114139), (314, 101780), (628, 50890), (727, 43960), (785, 40712), (1099, 29080), (1256, 25445), (1454, 21980), (1570, 20356), (2198, 14540), (2908, 10990), (3140, 10178), (3635, 8792), (4396, 7270), (5089, 6280), (5495, 5816)]