19072020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{71}}^1$

素因数の和:142

約数の個数: 144

約数和(自身を含む): 61133184

約数和(自身を除く): 42061164

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 37, 44, 55, 60, 66, 71, 74, 110, 111, 121, 132, 142, 148, 165, 185, 213, 220, 222, 242, 284, 330, 355, 363, 370, 407, 426, 444, 484, 555, 605, 660, 710, 726, 740, 781, 814, 852, 1065, 1110, 1210, 1221, 1420, 1452, 1562, 1628, 1815, 2035, 2130, 2220, 2343, 2420, 2442, 2627, 3124, 3630, 3905, 4070, 4260, 4477, 4686, 4884, 5254, 6105, 7260, 7810, 7881, 8140, 8591, 8954, 9372, 10508, 11715, 12210, 13135, 13431, 15620, 15762, 17182, 17908, 22385, 23430, 24420, 25773, 26270, 26862, 28897, 31524, 34364, 39405, 42955, 44770, 46860, 51546, 52540, 53724, 57794, 67155, 78810, 85910, 86691, 89540, 103092, 115588, 128865, 134310, 144485, 157620, 171820, 173382, 257730, 268620, 288970, 317867, 346764, 433455, 515460, 577940, 635734, 866910, 953601, 1271468, 1589335, 1733820, 1907202, 3178670, 3814404, 4768005, 6357340, 9536010, 19072020]

約数ペア:

[(1, 19072020), (2, 9536010), (3, 6357340), (4, 4768005), (5, 3814404), (6, 3178670), (10, 1907202), (11, 1733820), (12, 1589335), (15, 1271468), (20, 953601), (22, 866910), (30, 635734), (33, 577940), (37, 515460), (44, 433455), (55, 346764), (60, 317867), (66, 288970), (71, 268620), (74, 257730), (110, 173382), (111, 171820), (121, 157620), (132, 144485), (142, 134310), (148, 128865), (165, 115588), (185, 103092), (213, 89540), (220, 86691), (222, 85910), (242, 78810), (284, 67155), (330, 57794), (355, 53724), (363, 52540), (370, 51546), (407, 46860), (426, 44770), (444, 42955), (484, 39405), (555, 34364), (605, 31524), (660, 28897), (710, 26862), (726, 26270), (740, 25773), (781, 24420), (814, 23430), (852, 22385), (1065, 17908), (1110, 17182), (1210, 15762), (1221, 15620), (1420, 13431), (1452, 13135), (1562, 12210), (1628, 11715), (1815, 10508), (2035, 9372), (2130, 8954), (2220, 8591), (2343, 8140), (2420, 7881), (2442, 7810), (2627, 7260), (3124, 6105), (3630, 5254), (3905, 4884), (4070, 4686), (4260, 4477)]