20189000

素因数分解:

$2^3\times 5^3\times {\mathrm{13}}^1\times {\mathrm{1553}}^1$

素因数の和:1587

約数の個数: 64

約数和(自身を含む): 50909040

約数和(自身を除く): 30720040

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 125, 130, 200, 250, 260, 325, 500, 520, 650, 1000, 1300, 1553, 1625, 2600, 3106, 3250, 6212, 6500, 7765, 12424, 13000, 15530, 20189, 31060, 38825, 40378, 62120, 77650, 80756, 100945, 155300, 161512, 194125, 201890, 310600, 388250, 403780, 504725, 776500, 807560, 1009450, 1553000, 2018900, 2523625, 4037800, 5047250, 10094500, 20189000]

約数ペア:

[(1, 20189000), (2, 10094500), (4, 5047250), (5, 4037800), (8, 2523625), (10, 2018900), (13, 1553000), (20, 1009450), (25, 807560), (26, 776500), (40, 504725), (50, 403780), (52, 388250), (65, 310600), (100, 201890), (104, 194125), (125, 161512), (130, 155300), (200, 100945), (250, 80756), (260, 77650), (325, 62120), (500, 40378), (520, 38825), (650, 31060), (1000, 20189), (1300, 15530), (1553, 13000), (1625, 12424), (2600, 7765), (3106, 6500), (3250, 6212)]