640852560

素因数分解:

$2^4\times 3^4\times 5^1\times {\mathrm{98897}}^1$

素因数の和:98922

約数の個数: 100

約数和(自身を含む): 2225798388

約数和(自身を除く): 1584945828

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 108, 120, 135, 144, 162, 180, 216, 240, 270, 324, 360, 405, 432, 540, 648, 720, 810, 1080, 1296, 1620, 2160, 3240, 6480, 98897, 197794, 296691, 395588, 494485, 593382, 791176, 890073, 988970, 1186764, 1483455, 1582352, 1780146, 1977940, 2373528, 2670219, 2966910, 3560292, 3955880, 4450365, 4747056, 5340438, 5933820, 7120584, 7911760, 8010657, 8900730, 10680876, 11867640, 13351095, 14241168, 16021314, 17801460, 21361752, 23735280, 26702190, 32042628, 35602920, 40053285, 42723504, 53404380, 64085256, 71205840, 80106570, 106808760, 128170512, 160213140, 213617520, 320426280, 640852560]

約数ペア:

[(1, 640852560), (2, 320426280), (3, 213617520), (4, 160213140), (5, 128170512), (6, 106808760), (8, 80106570), (9, 71205840), (10, 64085256), (12, 53404380), (15, 42723504), (16, 40053285), (18, 35602920), (20, 32042628), (24, 26702190), (27, 23735280), (30, 21361752), (36, 17801460), (40, 16021314), (45, 14241168), (48, 13351095), (54, 11867640), (60, 10680876), (72, 8900730), (80, 8010657), (81, 7911760), (90, 7120584), (108, 5933820), (120, 5340438), (135, 4747056), (144, 4450365), (162, 3955880), (180, 3560292), (216, 2966910), (240, 2670219), (270, 2373528), (324, 1977940), (360, 1780146), (405, 1582352), (432, 1483455), (540, 1186764), (648, 988970), (720, 890073), (810, 791176), (1080, 593382), (1296, 494485), (1620, 395588), (2160, 296691), (3240, 197794), (6480, 98897)]