208022900

素因数分解:

$2^2\times 5^2\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{353}}^1$

素因数の和:521

約数の個数: 72

約数和(自身を含む): 464595264

約数和(自身を除く): 256572364

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 71, 83, 100, 142, 166, 284, 332, 353, 355, 415, 706, 710, 830, 1412, 1420, 1660, 1765, 1775, 2075, 3530, 3550, 4150, 5893, 7060, 7100, 8300, 8825, 11786, 17650, 23572, 25063, 29299, 29465, 35300, 50126, 58598, 58930, 100252, 117196, 117860, 125315, 146495, 147325, 250630, 292990, 294650, 501260, 585980, 589300, 626575, 732475, 1253150, 1464950, 2080229, 2506300, 2929900, 4160458, 8320916, 10401145, 20802290, 41604580, 52005725, 104011450, 208022900]

約数ペア:

[(1, 208022900), (2, 104011450), (4, 52005725), (5, 41604580), (10, 20802290), (20, 10401145), (25, 8320916), (50, 4160458), (71, 2929900), (83, 2506300), (100, 2080229), (142, 1464950), (166, 1253150), (284, 732475), (332, 626575), (353, 589300), (355, 585980), (415, 501260), (706, 294650), (710, 292990), (830, 250630), (1412, 147325), (1420, 146495), (1660, 125315), (1765, 117860), (1775, 117196), (2075, 100252), (3530, 58930), (3550, 58598), (4150, 50126), (5893, 35300), (7060, 29465), (7100, 29299), (8300, 25063), (8825, 23572), (11786, 17650)]