7181720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1973}}^1$

素因数の和:2004

約数の個数: 64

約数和(自身を含む): 19897920

約数和(自身を除く): 12716200

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 364, 455, 520, 728, 910, 1820, 1973, 3640, 3946, 7892, 9865, 13811, 15784, 19730, 25649, 27622, 39460, 51298, 55244, 69055, 78920, 102596, 110488, 128245, 138110, 179543, 205192, 256490, 276220, 359086, 512980, 552440, 718172, 897715, 1025960, 1436344, 1795430, 3590860, 7181720]

約数ペア:

[(1, 7181720), (2, 3590860), (4, 1795430), (5, 1436344), (7, 1025960), (8, 897715), (10, 718172), (13, 552440), (14, 512980), (20, 359086), (26, 276220), (28, 256490), (35, 205192), (40, 179543), (52, 138110), (56, 128245), (65, 110488), (70, 102596), (91, 78920), (104, 69055), (130, 55244), (140, 51298), (182, 39460), (260, 27622), (280, 25649), (364, 19730), (455, 15784), (520, 13811), (728, 9865), (910, 7892), (1820, 3946), (1973, 3640)]