19790190

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{283}}^1$

素因数の和:343

約数の個数: 128

約数和(自身を含む): 62161920

約数和(自身を除く): 42371730

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 37, 42, 45, 54, 63, 70, 74, 90, 105, 111, 126, 135, 185, 189, 210, 222, 259, 270, 283, 315, 333, 370, 378, 518, 555, 566, 630, 666, 777, 849, 945, 999, 1110, 1295, 1415, 1554, 1665, 1698, 1890, 1981, 1998, 2331, 2547, 2590, 2830, 3330, 3885, 3962, 4245, 4662, 4995, 5094, 5943, 6993, 7641, 7770, 8490, 9905, 9990, 10471, 11655, 11886, 12735, 13986, 15282, 17829, 19810, 20942, 23310, 25470, 29715, 31413, 34965, 35658, 38205, 52355, 53487, 59430, 62826, 69930, 73297, 76410, 89145, 94239, 104710, 106974, 146594, 157065, 178290, 188478, 219891, 267435, 282717, 314130, 366485, 439782, 471195, 534870, 565434, 659673, 732970, 942390, 1099455, 1319346, 1413585, 1979019, 2198910, 2827170, 3298365, 3958038, 6596730, 9895095, 19790190]

約数ペア:

[(1, 19790190), (2, 9895095), (3, 6596730), (5, 3958038), (6, 3298365), (7, 2827170), (9, 2198910), (10, 1979019), (14, 1413585), (15, 1319346), (18, 1099455), (21, 942390), (27, 732970), (30, 659673), (35, 565434), (37, 534870), (42, 471195), (45, 439782), (54, 366485), (63, 314130), (70, 282717), (74, 267435), (90, 219891), (105, 188478), (111, 178290), (126, 157065), (135, 146594), (185, 106974), (189, 104710), (210, 94239), (222, 89145), (259, 76410), (270, 73297), (283, 69930), (315, 62826), (333, 59430), (370, 53487), (378, 52355), (518, 38205), (555, 35658), (566, 34965), (630, 31413), (666, 29715), (777, 25470), (849, 23310), (945, 20942), (999, 19810), (1110, 17829), (1295, 15282), (1415, 13986), (1554, 12735), (1665, 11886), (1698, 11655), (1890, 10471), (1981, 9990), (1998, 9905), (2331, 8490), (2547, 7770), (2590, 7641), (2830, 6993), (3330, 5943), (3885, 5094), (3962, 4995), (4245, 4662)]