19386780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1489}}^1$

素因数の和:1539

約数の個数: 96

約数和(自身を含む): 64081920

約数和(自身を除く): 44695140

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 31, 35, 42, 60, 62, 70, 84, 93, 105, 124, 140, 155, 186, 210, 217, 310, 372, 420, 434, 465, 620, 651, 868, 930, 1085, 1302, 1489, 1860, 2170, 2604, 2978, 3255, 4340, 4467, 5956, 6510, 7445, 8934, 10423, 13020, 14890, 17868, 20846, 22335, 29780, 31269, 41692, 44670, 46159, 52115, 62538, 89340, 92318, 104230, 125076, 138477, 156345, 184636, 208460, 230795, 276954, 312690, 323113, 461590, 553908, 625380, 646226, 692385, 923180, 969339, 1292452, 1384770, 1615565, 1938678, 2769540, 3231130, 3877356, 4846695, 6462260, 9693390, 19386780]

約数ペア:

[(1, 19386780), (2, 9693390), (3, 6462260), (4, 4846695), (5, 3877356), (6, 3231130), (7, 2769540), (10, 1938678), (12, 1615565), (14, 1384770), (15, 1292452), (20, 969339), (21, 923180), (28, 692385), (30, 646226), (31, 625380), (35, 553908), (42, 461590), (60, 323113), (62, 312690), (70, 276954), (84, 230795), (93, 208460), (105, 184636), (124, 156345), (140, 138477), (155, 125076), (186, 104230), (210, 92318), (217, 89340), (310, 62538), (372, 52115), (420, 46159), (434, 44670), (465, 41692), (620, 31269), (651, 29780), (868, 22335), (930, 20846), (1085, 17868), (1302, 14890), (1489, 13020), (1860, 10423), (2170, 8934), (2604, 7445), (2978, 6510), (3255, 5956), (4340, 4467)]