51983900

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{409}}^1$

素因数の和:495

約数の個数: 72

約数和(自身を含む): 119575680

約数和(自身を除く): 67591780

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 41, 50, 62, 82, 100, 124, 155, 164, 205, 310, 409, 410, 620, 775, 818, 820, 1025, 1271, 1550, 1636, 2045, 2050, 2542, 3100, 4090, 4100, 5084, 6355, 8180, 10225, 12679, 12710, 16769, 20450, 25358, 25420, 31775, 33538, 40900, 50716, 63395, 63550, 67076, 83845, 126790, 127100, 167690, 253580, 316975, 335380, 419225, 519839, 633950, 838450, 1039678, 1267900, 1676900, 2079356, 2599195, 5198390, 10396780, 12995975, 25991950, 51983900]

約数ペア:

[(1, 51983900), (2, 25991950), (4, 12995975), (5, 10396780), (10, 5198390), (20, 2599195), (25, 2079356), (31, 1676900), (41, 1267900), (50, 1039678), (62, 838450), (82, 633950), (100, 519839), (124, 419225), (155, 335380), (164, 316975), (205, 253580), (310, 167690), (409, 127100), (410, 126790), (620, 83845), (775, 67076), (818, 63550), (820, 63395), (1025, 50716), (1271, 40900), (1550, 33538), (1636, 31775), (2045, 25420), (2050, 25358), (2542, 20450), (3100, 16769), (4090, 12710), (4100, 12679), (5084, 10225), (6355, 8180)]