20833470

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{151}}^1$

素因数の和:247

約数の個数: 128

約数和(自身を含む): 64788480

約数和(自身を除く): 43955010

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 73, 90, 105, 126, 135, 146, 151, 189, 210, 219, 270, 302, 315, 365, 378, 438, 453, 511, 630, 657, 730, 755, 906, 945, 1022, 1057, 1095, 1314, 1359, 1510, 1533, 1890, 1971, 2114, 2190, 2265, 2555, 2718, 3066, 3171, 3285, 3942, 4077, 4530, 4599, 5110, 5285, 6342, 6570, 6795, 7665, 8154, 9198, 9513, 9855, 10570, 11023, 13590, 13797, 15330, 15855, 19026, 19710, 20385, 22046, 22995, 27594, 28539, 31710, 33069, 40770, 45990, 47565, 55115, 57078, 66138, 68985, 77161, 95130, 99207, 110230, 137970, 142695, 154322, 165345, 198414, 231483, 285390, 297621, 330690, 385805, 462966, 496035, 595242, 694449, 771610, 992070, 1157415, 1388898, 1488105, 2083347, 2314830, 2976210, 3472245, 4166694, 6944490, 10416735, 20833470]

約数ペア:

[(1, 20833470), (2, 10416735), (3, 6944490), (5, 4166694), (6, 3472245), (7, 2976210), (9, 2314830), (10, 2083347), (14, 1488105), (15, 1388898), (18, 1157415), (21, 992070), (27, 771610), (30, 694449), (35, 595242), (42, 496035), (45, 462966), (54, 385805), (63, 330690), (70, 297621), (73, 285390), (90, 231483), (105, 198414), (126, 165345), (135, 154322), (146, 142695), (151, 137970), (189, 110230), (210, 99207), (219, 95130), (270, 77161), (302, 68985), (315, 66138), (365, 57078), (378, 55115), (438, 47565), (453, 45990), (511, 40770), (630, 33069), (657, 31710), (730, 28539), (755, 27594), (906, 22995), (945, 22046), (1022, 20385), (1057, 19710), (1095, 19026), (1314, 15855), (1359, 15330), (1510, 13797), (1533, 13590), (1890, 11023), (1971, 10570), (2114, 9855), (2190, 9513), (2265, 9198), (2555, 8154), (2718, 7665), (3066, 6795), (3171, 6570), (3285, 6342), (3942, 5285), (4077, 5110), (4530, 4599)]