19729320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{12647}}^1$

素因数の和:12674

約数の個数: 64

約数和(自身を含む): 63745920

約数和(自身を除く): 44016600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 12647, 25294, 37941, 50588, 63235, 75882, 101176, 126470, 151764, 164411, 189705, 252940, 303528, 328822, 379410, 493233, 505880, 657644, 758820, 822055, 986466, 1315288, 1517640, 1644110, 1972932, 2466165, 3288220, 3945864, 4932330, 6576440, 9864660, 19729320]

約数ペア:

[(1, 19729320), (2, 9864660), (3, 6576440), (4, 4932330), (5, 3945864), (6, 3288220), (8, 2466165), (10, 1972932), (12, 1644110), (13, 1517640), (15, 1315288), (20, 986466), (24, 822055), (26, 758820), (30, 657644), (39, 505880), (40, 493233), (52, 379410), (60, 328822), (65, 303528), (78, 252940), (104, 189705), (120, 164411), (130, 151764), (156, 126470), (195, 101176), (260, 75882), (312, 63235), (390, 50588), (520, 37941), (780, 25294), (1560, 12647)]