19713540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{251}}^1$

素因数の和:298

約数の個数: 192

約数和(自身を含む): 73156608

約数和(自身を除く): 53443068

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 17, 20, 21, 22, 28, 30, 33, 34, 35, 42, 44, 51, 55, 60, 66, 68, 70, 77, 84, 85, 102, 105, 110, 119, 132, 140, 154, 165, 170, 187, 204, 210, 220, 231, 238, 251, 255, 308, 330, 340, 357, 374, 385, 420, 462, 476, 502, 510, 561, 595, 660, 714, 748, 753, 770, 924, 935, 1004, 1020, 1122, 1155, 1190, 1255, 1309, 1428, 1506, 1540, 1757, 1785, 1870, 2244, 2310, 2380, 2510, 2618, 2761, 2805, 3012, 3514, 3570, 3740, 3765, 3927, 4267, 4620, 5020, 5236, 5271, 5522, 5610, 6545, 7028, 7140, 7530, 7854, 8283, 8534, 8785, 10542, 11044, 11220, 12801, 13090, 13805, 15060, 15708, 16566, 17068, 17570, 19327, 19635, 21084, 21335, 25602, 26180, 26355, 27610, 29869, 33132, 35140, 38654, 39270, 41415, 42670, 46937, 51204, 52710, 55220, 57981, 59738, 64005, 77308, 78540, 82830, 85340, 89607, 93874, 96635, 105420, 115962, 119476, 128010, 140811, 149345, 165660, 179214, 187748, 193270, 231924, 234685, 256020, 281622, 289905, 298690, 328559, 358428, 386540, 448035, 469370, 563244, 579810, 597380, 657118, 704055, 896070, 938740, 985677, 1159620, 1314236, 1408110, 1642795, 1792140, 1971354, 2816220, 3285590, 3942708, 4928385, 6571180, 9856770, 19713540]

約数ペア:

[(1, 19713540), (2, 9856770), (3, 6571180), (4, 4928385), (5, 3942708), (6, 3285590), (7, 2816220), (10, 1971354), (11, 1792140), (12, 1642795), (14, 1408110), (15, 1314236), (17, 1159620), (20, 985677), (21, 938740), (22, 896070), (28, 704055), (30, 657118), (33, 597380), (34, 579810), (35, 563244), (42, 469370), (44, 448035), (51, 386540), (55, 358428), (60, 328559), (66, 298690), (68, 289905), (70, 281622), (77, 256020), (84, 234685), (85, 231924), (102, 193270), (105, 187748), (110, 179214), (119, 165660), (132, 149345), (140, 140811), (154, 128010), (165, 119476), (170, 115962), (187, 105420), (204, 96635), (210, 93874), (220, 89607), (231, 85340), (238, 82830), (251, 78540), (255, 77308), (308, 64005), (330, 59738), (340, 57981), (357, 55220), (374, 52710), (385, 51204), (420, 46937), (462, 42670), (476, 41415), (502, 39270), (510, 38654), (561, 35140), (595, 33132), (660, 29869), (714, 27610), (748, 26355), (753, 26180), (770, 25602), (924, 21335), (935, 21084), (1004, 19635), (1020, 19327), (1122, 17570), (1155, 17068), (1190, 16566), (1255, 15708), (1309, 15060), (1428, 13805), (1506, 13090), (1540, 12801), (1757, 11220), (1785, 11044), (1870, 10542), (2244, 8785), (2310, 8534), (2380, 8283), (2510, 7854), (2618, 7530), (2761, 7140), (2805, 7028), (3012, 6545), (3514, 5610), (3570, 5522), (3740, 5271), (3765, 5236), (3927, 5020), (4267, 4620)]