281681120

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{251501}}^1$

素因数の和:251523

約数の個数: 48

約数和(自身を含む): 760542048

約数和(自身を除く): 478860928

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 251501, 503002, 1006004, 1257505, 1760507, 2012008, 2515010, 3521014, 4024016, 5030020, 7042028, 8048032, 8802535, 10060040, 14084056, 17605070, 20120080, 28168112, 35210140, 40240160, 56336224, 70420280, 140840560, 281681120]

約数ペア:

[(1, 281681120), (2, 140840560), (4, 70420280), (5, 56336224), (7, 40240160), (8, 35210140), (10, 28168112), (14, 20120080), (16, 17605070), (20, 14084056), (28, 10060040), (32, 8802535), (35, 8048032), (40, 7042028), (56, 5030020), (70, 4024016), (80, 3521014), (112, 2515010), (140, 2012008), (160, 1760507), (224, 1257505), (280, 1006004), (560, 503002), (1120, 251501)]