40378000

素因数分解:

$2^4\times 5^3\times {\mathrm{13}}^1\times {\mathrm{1553}}^1$

素因数の和:1589

約数の個数: 80

約数和(自身を含む): 105212016

約数和(自身を除く): 64834016

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 125, 130, 200, 208, 250, 260, 325, 400, 500, 520, 650, 1000, 1040, 1300, 1553, 1625, 2000, 2600, 3106, 3250, 5200, 6212, 6500, 7765, 12424, 13000, 15530, 20189, 24848, 26000, 31060, 38825, 40378, 62120, 77650, 80756, 100945, 124240, 155300, 161512, 194125, 201890, 310600, 323024, 388250, 403780, 504725, 621200, 776500, 807560, 1009450, 1553000, 1615120, 2018900, 2523625, 3106000, 4037800, 5047250, 8075600, 10094500, 20189000, 40378000]

約数ペア:

[(1, 40378000), (2, 20189000), (4, 10094500), (5, 8075600), (8, 5047250), (10, 4037800), (13, 3106000), (16, 2523625), (20, 2018900), (25, 1615120), (26, 1553000), (40, 1009450), (50, 807560), (52, 776500), (65, 621200), (80, 504725), (100, 403780), (104, 388250), (125, 323024), (130, 310600), (200, 201890), (208, 194125), (250, 161512), (260, 155300), (325, 124240), (400, 100945), (500, 80756), (520, 77650), (650, 62120), (1000, 40378), (1040, 38825), (1300, 31060), (1553, 26000), (1625, 24848), (2000, 20189), (2600, 15530), (3106, 13000), (3250, 12424), (5200, 7765), (6212, 6500)]