20784865980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1297}}^1\times {\mathrm{3001}}^1$

素因数の和:4399

約数の個数: 96

約数和(自身を含む): 58916531520

約数和(自身を除く): 38131665540

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 89, 178, 267, 356, 445, 534, 890, 1068, 1297, 1335, 1780, 2594, 2670, 3001, 3891, 5188, 5340, 6002, 6485, 7782, 9003, 12004, 12970, 15005, 15564, 18006, 19455, 25940, 30010, 36012, 38910, 45015, 60020, 77820, 90030, 115433, 180060, 230866, 267089, 346299, 461732, 534178, 577165, 692598, 801267, 1068356, 1154330, 1335445, 1385196, 1602534, 1731495, 2308660, 2670890, 3205068, 3462990, 3892297, 4006335, 5341780, 6925980, 7784594, 8012670, 11676891, 15569188, 16025340, 19461485, 23353782, 38922970, 46707564, 58384455, 77845940, 116768910, 233537820, 346414433, 692828866, 1039243299, 1385657732, 1732072165, 2078486598, 3464144330, 4156973196, 5196216495, 6928288660, 10392432990, 20784865980]

約数ペア:

[(1, 20784865980), (2, 10392432990), (3, 6928288660), (4, 5196216495), (5, 4156973196), (6, 3464144330), (10, 2078486598), (12, 1732072165), (15, 1385657732), (20, 1039243299), (30, 692828866), (60, 346414433), (89, 233537820), (178, 116768910), (267, 77845940), (356, 58384455), (445, 46707564), (534, 38922970), (890, 23353782), (1068, 19461485), (1297, 16025340), (1335, 15569188), (1780, 11676891), (2594, 8012670), (2670, 7784594), (3001, 6925980), (3891, 5341780), (5188, 4006335), (5340, 3892297), (6002, 3462990), (6485, 3205068), (7782, 2670890), (9003, 2308660), (12004, 1731495), (12970, 1602534), (15005, 1385196), (15564, 1335445), (18006, 1154330), (19455, 1068356), (25940, 801267), (30010, 692598), (36012, 577165), (38910, 534178), (45015, 461732), (60020, 346299), (77820, 267089), (90030, 230866), (115433, 180060)]