20650500

素因数分解:

$2^2\times 3^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{353}}^1$

素因数の和:391

約数の個数: 144

約数和(自身を含む): 70355376

約数和(自身を除く): 49704876

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 25, 26, 30, 36, 39, 45, 50, 52, 60, 65, 75, 78, 90, 100, 117, 125, 130, 150, 156, 180, 195, 225, 234, 250, 260, 300, 325, 353, 375, 390, 450, 468, 500, 585, 650, 706, 750, 780, 900, 975, 1059, 1125, 1170, 1300, 1412, 1500, 1625, 1765, 1950, 2118, 2250, 2340, 2925, 3177, 3250, 3530, 3900, 4236, 4500, 4589, 4875, 5295, 5850, 6354, 6500, 7060, 8825, 9178, 9750, 10590, 11700, 12708, 13767, 14625, 15885, 17650, 18356, 19500, 21180, 22945, 26475, 27534, 29250, 31770, 35300, 41301, 44125, 45890, 52950, 55068, 58500, 63540, 68835, 79425, 82602, 88250, 91780, 105900, 114725, 132375, 137670, 158850, 165204, 176500, 206505, 229450, 264750, 275340, 317700, 344175, 397125, 413010, 458900, 529500, 573625, 688350, 794250, 826020, 1032525, 1147250, 1376700, 1588500, 1720875, 2065050, 2294500, 3441750, 4130100, 5162625, 6883500, 10325250, 20650500]

約数ペア:

[(1, 20650500), (2, 10325250), (3, 6883500), (4, 5162625), (5, 4130100), (6, 3441750), (9, 2294500), (10, 2065050), (12, 1720875), (13, 1588500), (15, 1376700), (18, 1147250), (20, 1032525), (25, 826020), (26, 794250), (30, 688350), (36, 573625), (39, 529500), (45, 458900), (50, 413010), (52, 397125), (60, 344175), (65, 317700), (75, 275340), (78, 264750), (90, 229450), (100, 206505), (117, 176500), (125, 165204), (130, 158850), (150, 137670), (156, 132375), (180, 114725), (195, 105900), (225, 91780), (234, 88250), (250, 82602), (260, 79425), (300, 68835), (325, 63540), (353, 58500), (375, 55068), (390, 52950), (450, 45890), (468, 44125), (500, 41301), (585, 35300), (650, 31770), (706, 29250), (750, 27534), (780, 26475), (900, 22945), (975, 21180), (1059, 19500), (1125, 18356), (1170, 17650), (1300, 15885), (1412, 14625), (1500, 13767), (1625, 12708), (1765, 11700), (1950, 10590), (2118, 9750), (2250, 9178), (2340, 8825), (2925, 7060), (3177, 6500), (3250, 6354), (3530, 5850), (3900, 5295), (4236, 4875), (4500, 4589)]