64439560

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{787}}^1$

素因数の和:910

約数の個数: 64

約数和(自身を含む): 153187200

約数和(自身を除く): 88747640

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 89, 92, 115, 178, 184, 230, 356, 445, 460, 712, 787, 890, 920, 1574, 1780, 2047, 3148, 3560, 3935, 4094, 6296, 7870, 8188, 10235, 15740, 16376, 18101, 20470, 31480, 36202, 40940, 70043, 72404, 81880, 90505, 140086, 144808, 181010, 280172, 350215, 362020, 560344, 700430, 724040, 1400860, 1610989, 2801720, 3221978, 6443956, 8054945, 12887912, 16109890, 32219780, 64439560]

約数ペア:

[(1, 64439560), (2, 32219780), (4, 16109890), (5, 12887912), (8, 8054945), (10, 6443956), (20, 3221978), (23, 2801720), (40, 1610989), (46, 1400860), (89, 724040), (92, 700430), (115, 560344), (178, 362020), (184, 350215), (230, 280172), (356, 181010), (445, 144808), (460, 140086), (712, 90505), (787, 81880), (890, 72404), (920, 70043), (1574, 40940), (1780, 36202), (2047, 31480), (3148, 20470), (3560, 18101), (3935, 16376), (4094, 15740), (6296, 10235), (7870, 8188)]