19748820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{3617}}^1$

素因数の和:3649

約数の個数: 96

約数和(自身を含む): 68076288

約数和(自身を除く): 48327468

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 52, 60, 65, 70, 78, 84, 91, 105, 130, 140, 156, 182, 195, 210, 260, 273, 364, 390, 420, 455, 546, 780, 910, 1092, 1365, 1820, 2730, 3617, 5460, 7234, 10851, 14468, 18085, 21702, 25319, 36170, 43404, 47021, 50638, 54255, 72340, 75957, 94042, 101276, 108510, 126595, 141063, 151914, 188084, 217020, 235105, 253190, 282126, 303828, 329147, 379785, 470210, 506380, 564252, 658294, 705315, 759570, 940420, 987441, 1316588, 1410630, 1519140, 1645735, 1974882, 2821260, 3291470, 3949764, 4937205, 6582940, 9874410, 19748820]

約数ペア:

[(1, 19748820), (2, 9874410), (3, 6582940), (4, 4937205), (5, 3949764), (6, 3291470), (7, 2821260), (10, 1974882), (12, 1645735), (13, 1519140), (14, 1410630), (15, 1316588), (20, 987441), (21, 940420), (26, 759570), (28, 705315), (30, 658294), (35, 564252), (39, 506380), (42, 470210), (52, 379785), (60, 329147), (65, 303828), (70, 282126), (78, 253190), (84, 235105), (91, 217020), (105, 188084), (130, 151914), (140, 141063), (156, 126595), (182, 108510), (195, 101276), (210, 94042), (260, 75957), (273, 72340), (364, 54255), (390, 50638), (420, 47021), (455, 43404), (546, 36170), (780, 25319), (910, 21702), (1092, 18085), (1365, 14468), (1820, 10851), (2730, 7234), (3617, 5460)]