20403721905

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{62143}}^1$

素因数の和:62270

約数の個数: 64

約数和(自身を含む): 38658539520

約数和(自身を除く): 18254817615

約数列:

[1, 3, 5, 7, 15, 21, 35, 53, 59, 105, 159, 177, 265, 295, 371, 413, 795, 885, 1113, 1239, 1855, 2065, 3127, 5565, 6195, 9381, 15635, 21889, 46905, 62143, 65667, 109445, 186429, 310715, 328335, 435001, 932145, 1305003, 2175005, 3293579, 3666437, 6525015, 9880737, 10999311, 16467895, 18332185, 23055053, 25665059, 49403685, 54996555, 69165159, 76995177, 115275265, 128325295, 194321161, 345825795, 384975885, 582963483, 971605805, 1360248127, 2914817415, 4080744381, 6801240635, 20403721905]

約数ペア:

[(1, 20403721905), (3, 6801240635), (5, 4080744381), (7, 2914817415), (15, 1360248127), (21, 971605805), (35, 582963483), (53, 384975885), (59, 345825795), (105, 194321161), (159, 128325295), (177, 115275265), (265, 76995177), (295, 69165159), (371, 54996555), (413, 49403685), (795, 25665059), (885, 23055053), (1113, 18332185), (1239, 16467895), (1855, 10999311), (2065, 9880737), (3127, 6525015), (5565, 3666437), (6195, 3293579), (9381, 2175005), (15635, 1305003), (21889, 932145), (46905, 435001), (62143, 328335), (65667, 310715), (109445, 186429)]