64620920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{433}}^1$

素因数の和:505

約数の個数: 128

約数和(自身を含む): 183738240

約数和(自身を除く): 119117320

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 41, 52, 56, 65, 70, 82, 91, 104, 130, 140, 164, 182, 205, 260, 280, 287, 328, 364, 410, 433, 455, 520, 533, 574, 728, 820, 866, 910, 1066, 1148, 1435, 1640, 1732, 1820, 2132, 2165, 2296, 2665, 2870, 3031, 3464, 3640, 3731, 4264, 4330, 5330, 5629, 5740, 6062, 7462, 8660, 10660, 11258, 11480, 12124, 14924, 15155, 17320, 17753, 18655, 21320, 22516, 24248, 28145, 29848, 30310, 35506, 37310, 39403, 45032, 56290, 60620, 71012, 74620, 78806, 88765, 112580, 121240, 124271, 142024, 149240, 157612, 177530, 197015, 225160, 230789, 248542, 315224, 355060, 394030, 461578, 497084, 621355, 710120, 788060, 923156, 994168, 1153945, 1242710, 1576120, 1615523, 1846312, 2307890, 2485420, 3231046, 4615780, 4970840, 6462092, 8077615, 9231560, 12924184, 16155230, 32310460, 64620920]

約数ペア:

[(1, 64620920), (2, 32310460), (4, 16155230), (5, 12924184), (7, 9231560), (8, 8077615), (10, 6462092), (13, 4970840), (14, 4615780), (20, 3231046), (26, 2485420), (28, 2307890), (35, 1846312), (40, 1615523), (41, 1576120), (52, 1242710), (56, 1153945), (65, 994168), (70, 923156), (82, 788060), (91, 710120), (104, 621355), (130, 497084), (140, 461578), (164, 394030), (182, 355060), (205, 315224), (260, 248542), (280, 230789), (287, 225160), (328, 197015), (364, 177530), (410, 157612), (433, 149240), (455, 142024), (520, 124271), (533, 121240), (574, 112580), (728, 88765), (820, 78806), (866, 74620), (910, 71012), (1066, 60620), (1148, 56290), (1435, 45032), (1640, 39403), (1732, 37310), (1820, 35506), (2132, 30310), (2165, 29848), (2296, 28145), (2665, 24248), (2870, 22516), (3031, 21320), (3464, 18655), (3640, 17753), (3731, 17320), (4264, 15155), (4330, 14924), (5330, 12124), (5629, 11480), (5740, 11258), (6062, 10660), (7462, 8660)]