81644535

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{607}}^1$

素因数の和:693

約数の個数: 72

約数和(自身を含む): 167596416

約数和(自身を除く): 85951881

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 61, 63, 105, 147, 183, 245, 305, 315, 427, 441, 549, 607, 735, 915, 1281, 1821, 2135, 2205, 2745, 2989, 3035, 3843, 4249, 5463, 6405, 8967, 9105, 12747, 14945, 19215, 21245, 26901, 27315, 29743, 37027, 38241, 44835, 63735, 89229, 111081, 134505, 148715, 185135, 191205, 259189, 267687, 333243, 446145, 555405, 777567, 1295945, 1338435, 1666215, 1814323, 2332701, 3887835, 5442969, 9071615, 11663505, 16328907, 27214845, 81644535]

約数ペア:

[(1, 81644535), (3, 27214845), (5, 16328907), (7, 11663505), (9, 9071615), (15, 5442969), (21, 3887835), (35, 2332701), (45, 1814323), (49, 1666215), (61, 1338435), (63, 1295945), (105, 777567), (147, 555405), (183, 446145), (245, 333243), (305, 267687), (315, 259189), (427, 191205), (441, 185135), (549, 148715), (607, 134505), (735, 111081), (915, 89229), (1281, 63735), (1821, 44835), (2135, 38241), (2205, 37027), (2745, 29743), (2989, 27315), (3035, 26901), (3843, 21245), (4249, 19215), (5463, 14945), (6405, 12747), (8967, 9105)]