20792370820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{151}}^1\times {\mathrm{40739}}^1$

素因数の和:40925

約数の個数: 72

約数和(自身を含む): 47595401280

約数和(自身を除く): 26803030460

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 151, 169, 260, 302, 338, 604, 676, 755, 845, 1510, 1690, 1963, 3020, 3380, 3926, 7852, 9815, 19630, 25519, 39260, 40739, 51038, 81478, 102076, 127595, 162956, 203695, 255190, 407390, 510380, 529607, 814780, 1059214, 2118428, 2648035, 5296070, 6151589, 6884891, 10592140, 12303178, 13769782, 24606356, 27539564, 30757945, 34424455, 61515890, 68848910, 79970657, 123031780, 137697820, 159941314, 319882628, 399853285, 799706570, 1039618541, 1599413140, 2079237082, 4158474164, 5198092705, 10396185410, 20792370820]

約数ペア:

[(1, 20792370820), (2, 10396185410), (4, 5198092705), (5, 4158474164), (10, 2079237082), (13, 1599413140), (20, 1039618541), (26, 799706570), (52, 399853285), (65, 319882628), (130, 159941314), (151, 137697820), (169, 123031780), (260, 79970657), (302, 68848910), (338, 61515890), (604, 34424455), (676, 30757945), (755, 27539564), (845, 24606356), (1510, 13769782), (1690, 12303178), (1963, 10592140), (3020, 6884891), (3380, 6151589), (3926, 5296070), (7852, 2648035), (9815, 2118428), (19630, 1059214), (25519, 814780), (39260, 529607), (40739, 510380), (51038, 407390), (81478, 255190), (102076, 203695), (127595, 162956)]