19820280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{331}}^1\times {\mathrm{499}}^1$

素因数の和:844

約数の個数: 64

約数和(自身を含む): 59760000

約数和(自身を除く): 39939720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 331, 499, 662, 993, 998, 1324, 1497, 1655, 1986, 1996, 2495, 2648, 2994, 3310, 3972, 3992, 4965, 4990, 5988, 6620, 7485, 7944, 9930, 9980, 11976, 13240, 14970, 19860, 19960, 29940, 39720, 59880, 165169, 330338, 495507, 660676, 825845, 991014, 1321352, 1651690, 1982028, 2477535, 3303380, 3964056, 4955070, 6606760, 9910140, 19820280]

約数ペア:

[(1, 19820280), (2, 9910140), (3, 6606760), (4, 4955070), (5, 3964056), (6, 3303380), (8, 2477535), (10, 1982028), (12, 1651690), (15, 1321352), (20, 991014), (24, 825845), (30, 660676), (40, 495507), (60, 330338), (120, 165169), (331, 59880), (499, 39720), (662, 29940), (993, 19960), (998, 19860), (1324, 14970), (1497, 13240), (1655, 11976), (1986, 9980), (1996, 9930), (2495, 7944), (2648, 7485), (2994, 6620), (3310, 5988), (3972, 4990), (3992, 4965)]