19712520

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{3221}}^1$

素因数の和:3255

約数の個数: 96

約数和(自身を含む): 67855320

約数和(自身を除く): 48142800

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 17, 18, 20, 24, 30, 34, 36, 40, 45, 51, 60, 68, 72, 85, 90, 102, 120, 136, 153, 170, 180, 204, 255, 306, 340, 360, 408, 510, 612, 680, 765, 1020, 1224, 1530, 2040, 3060, 3221, 6120, 6442, 9663, 12884, 16105, 19326, 25768, 28989, 32210, 38652, 48315, 54757, 57978, 64420, 77304, 96630, 109514, 115956, 128840, 144945, 164271, 193260, 219028, 231912, 273785, 289890, 328542, 386520, 438056, 492813, 547570, 579780, 657084, 821355, 985626, 1095140, 1159560, 1314168, 1642710, 1971252, 2190280, 2464065, 3285420, 3942504, 4928130, 6570840, 9856260, 19712520]

約数ペア:

[(1, 19712520), (2, 9856260), (3, 6570840), (4, 4928130), (5, 3942504), (6, 3285420), (8, 2464065), (9, 2190280), (10, 1971252), (12, 1642710), (15, 1314168), (17, 1159560), (18, 1095140), (20, 985626), (24, 821355), (30, 657084), (34, 579780), (36, 547570), (40, 492813), (45, 438056), (51, 386520), (60, 328542), (68, 289890), (72, 273785), (85, 231912), (90, 219028), (102, 193260), (120, 164271), (136, 144945), (153, 128840), (170, 115956), (180, 109514), (204, 96630), (255, 77304), (306, 64420), (340, 57978), (360, 54757), (408, 48315), (510, 38652), (612, 32210), (680, 28989), (765, 25768), (1020, 19326), (1224, 16105), (1530, 12884), (2040, 9663), (3060, 6442), (3221, 6120)]