20190420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{503}}^1$

素因数の和:741

約数の個数: 72

約数和(自身を含む): 61641216

約数和(自身を除く): 41450796

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 223, 446, 503, 669, 892, 1006, 1115, 1338, 1509, 2007, 2012, 2230, 2515, 2676, 3018, 3345, 4014, 4460, 4527, 5030, 6036, 6690, 7545, 8028, 9054, 10035, 10060, 13380, 15090, 18108, 20070, 22635, 30180, 40140, 45270, 90540, 112169, 224338, 336507, 448676, 560845, 673014, 1009521, 1121690, 1346028, 1682535, 2019042, 2243380, 3365070, 4038084, 5047605, 6730140, 10095210, 20190420]

約数ペア:

[(1, 20190420), (2, 10095210), (3, 6730140), (4, 5047605), (5, 4038084), (6, 3365070), (9, 2243380), (10, 2019042), (12, 1682535), (15, 1346028), (18, 1121690), (20, 1009521), (30, 673014), (36, 560845), (45, 448676), (60, 336507), (90, 224338), (180, 112169), (223, 90540), (446, 45270), (503, 40140), (669, 30180), (892, 22635), (1006, 20070), (1115, 18108), (1338, 15090), (1509, 13380), (2007, 10060), (2012, 10035), (2230, 9054), (2515, 8028), (2676, 7545), (3018, 6690), (3345, 6036), (4014, 5030), (4460, 4527)]