20564100

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{73}}^1\times {\mathrm{313}}^1$

素因数の和:406

約数の個数: 108

約数和(自身を含む): 65548756

約数和(自身を除く): 44984656

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 73, 75, 90, 100, 146, 150, 180, 219, 225, 292, 300, 313, 365, 438, 450, 626, 657, 730, 876, 900, 939, 1095, 1252, 1314, 1460, 1565, 1825, 1878, 2190, 2628, 2817, 3130, 3285, 3650, 3756, 4380, 4695, 5475, 5634, 6260, 6570, 7300, 7825, 9390, 10950, 11268, 13140, 14085, 15650, 16425, 18780, 21900, 22849, 23475, 28170, 31300, 32850, 45698, 46950, 56340, 65700, 68547, 70425, 91396, 93900, 114245, 137094, 140850, 205641, 228490, 274188, 281700, 342735, 411282, 456980, 571225, 685470, 822564, 1028205, 1142450, 1370940, 1713675, 2056410, 2284900, 3427350, 4112820, 5141025, 6854700, 10282050, 20564100]

約数ペア:

[(1, 20564100), (2, 10282050), (3, 6854700), (4, 5141025), (5, 4112820), (6, 3427350), (9, 2284900), (10, 2056410), (12, 1713675), (15, 1370940), (18, 1142450), (20, 1028205), (25, 822564), (30, 685470), (36, 571225), (45, 456980), (50, 411282), (60, 342735), (73, 281700), (75, 274188), (90, 228490), (100, 205641), (146, 140850), (150, 137094), (180, 114245), (219, 93900), (225, 91396), (292, 70425), (300, 68547), (313, 65700), (365, 56340), (438, 46950), (450, 45698), (626, 32850), (657, 31300), (730, 28170), (876, 23475), (900, 22849), (939, 21900), (1095, 18780), (1252, 16425), (1314, 15650), (1460, 14085), (1565, 13140), (1825, 11268), (1878, 10950), (2190, 9390), (2628, 7825), (2817, 7300), (3130, 6570), (3285, 6260), (3650, 5634), (3756, 5475), (4380, 4695)]