64790985

素因数分解:

$3^1\times 5^1\times 7^5\times {\mathrm{257}}^1$

素因数の和:300

約数の個数: 48

約数和(自身を含む): 121412736

約数和(自身を除く): 56621751

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 257, 343, 735, 771, 1029, 1285, 1715, 1799, 2401, 3855, 5145, 5397, 7203, 8995, 12005, 12593, 16807, 26985, 36015, 37779, 50421, 62965, 84035, 88151, 188895, 252105, 264453, 440755, 617057, 1322265, 1851171, 3085285, 4319399, 9255855, 12958197, 21596995, 64790985]

約数ペア:

[(1, 64790985), (3, 21596995), (5, 12958197), (7, 9255855), (15, 4319399), (21, 3085285), (35, 1851171), (49, 1322265), (105, 617057), (147, 440755), (245, 264453), (257, 252105), (343, 188895), (735, 88151), (771, 84035), (1029, 62965), (1285, 50421), (1715, 37779), (1799, 36015), (2401, 26985), (3855, 16807), (5145, 12593), (5397, 12005), (7203, 8995)]