217991760

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{129757}}^1$

素因数の和:129780

約数の個数: 80

約数和(自身を含む): 772319616

約数和(自身を除く): 554327856

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 129757, 259514, 389271, 519028, 648785, 778542, 908299, 1038056, 1297570, 1557084, 1816598, 1946355, 2076112, 2595140, 2724897, 3114168, 3633196, 3892710, 4541495, 5190280, 5449794, 6228336, 7266392, 7785420, 9082990, 10380560, 10899588, 13624485, 14532784, 15570840, 18165980, 21799176, 27248970, 31141680, 36331960, 43598352, 54497940, 72663920, 108995880, 217991760]

約数ペア:

[(1, 217991760), (2, 108995880), (3, 72663920), (4, 54497940), (5, 43598352), (6, 36331960), (7, 31141680), (8, 27248970), (10, 21799176), (12, 18165980), (14, 15570840), (15, 14532784), (16, 13624485), (20, 10899588), (21, 10380560), (24, 9082990), (28, 7785420), (30, 7266392), (35, 6228336), (40, 5449794), (42, 5190280), (48, 4541495), (56, 3892710), (60, 3633196), (70, 3114168), (80, 2724897), (84, 2595140), (105, 2076112), (112, 1946355), (120, 1816598), (140, 1557084), (168, 1297570), (210, 1038056), (240, 908299), (280, 778542), (336, 648785), (420, 519028), (560, 389271), (840, 259514), (1680, 129757)]